Full transcript
0:03Under a punishing sun,
0:07the savannah is about to stage a battle
0:10for survival
0:12at its harshest.
0:16This is the collision between lion
0:19versus crocodile.
0:22Before we follow the fearless prey to
0:25the line between living and not.
0:37[music] Tell us in the comments where
0:39you are watching.
0:49[music]
0:54Now to the greatest fights of the
0:57African savannah.
1:05At the end of the dry season, the river
1:08does not disappear.
1:10It shrinks.
1:15>> [music]
1:22[music]
1:26>> Elephant herds are good at one thing
1:30no other species here can manage. That
1:34sand well does not stay theirs.
1:41[music]
1:45Where water still holds, density becomes
1:48the problem.
1:52The dry season does not add a single
1:55predator.
1:57It pulls everything closer together
2:00until the safe distance is gone.
2:06On the dead branches along the bank,
2:08maribou stalks and vultures are already
2:11waiting.
2:14Under the sand near the bank, there is a
2:18nest.
2:20For 3 months, she barely eats.
2:24A full-g grown Nile crocodile can go
2:28months without a meal
2:31simply by dropping her metabolism to the
2:34lowest setting it has.
2:38In other animals, patience is a
2:41temperament.
2:43In this one, it is anatomy.
2:49The temperature inside that sand pit
2:52decides the sex of the whole clutch.
2:57A degree warmer and the clutch leans
3:00male.
3:02A few degrees cooler and the whole
3:04clutch comes out female.
3:08Nile monitors work the bank, reading
3:11scent in the sand
3:15with a forked tongue,
3:19holding the position of every nest in
3:22memory for weeks.
3:25[music]
3:30[music]
3:39On land, a crocodile is still a serious
3:43opponent.
3:48There is no territorial agreement
3:50between these two species.
3:53Neither of these two is truly a predator
3:56of the other. They just keep testing a
4:00border, and that border is the water
4:03line.
4:15>> [music]
4:24>> A baboon troop can run to more than 100
4:28animals.
4:30They eat grass, fruit, insects, and any
4:34protein they can reach.
4:41Reptile eggs are on that list.
4:45Two youngsters cut across a fallen
4:47trunk.
4:49They reach the sand mound ahead of the
4:52troop.
4:54Taking food another species produced
4:57costs almost nothing. The reward is the
5:01richest thing available this season.
5:06Protein, fat, and water.
5:12But no meal out here is free. The whole
5:16troop sees it. The dominant male sees it
5:20first.
5:23He does not come to share. He comes to
5:28take all of it.
5:44He gets out for the whole time she was
5:47closing in.
5:49The troop stayed silent.
5:52Not one alarm call.
5:56Baboons have dozens of distinct calls,
5:59and a large share of them exist to warn.
6:04Not this time.
6:06Strength wins a meal.
6:11Only trust keeps a place in the troop.
6:23The cheetah relies on trust in a whole
6:27new way.
6:30It has kept a watchful eye on the river
6:32for quite a while.
6:37>> Setting a single paw down is a point of
6:41no return.
6:47>> [music]
6:58>> A single second of letting their guard
7:01down,
7:05the odds of making it through dropped to
7:08zero. His friend perished in this river
7:14crossing.
7:20This will be a lesson for him and the
7:23next generation when crossing this river
7:26again.
7:33When the dry season pulls the water
7:35down,
7:37the one who moves first keeps his life.
7:46But water has a second face.
7:50If falling water can cost a strong
7:53animal his standing,
7:56what does rising water take and from
8:00whom?
8:09The answer comes early.
8:18Elephants hear sound too low for human
8:21ears
8:23and pick up vibration traveling through
8:25the ground.
8:30A storm hundreds of kilometers away
8:33still leaves a trace in the soil under
8:36their feet.
8:41The rain lands on the high ground
8:43upstream.
8:55Within hours, a riverbed
8:59that was a white sandbar becomes fast
9:03water.
9:06[music]
9:07The matriarch turns the herd toward
9:10higher ground.
9:12But between the herd and that high
9:15ground is a river that has just filled
9:19again. [music]
9:27Elephants swim well, better than almost
9:30any other large land.
9:37The adults line up on the upstream side,
9:42using their own bodies as a wall for the
9:44calves behind them.
9:48This is how the species [music] has come
9:50through countless flood seasons.
9:53The fresh mud is slick enough that a
9:56calf cannot keep 4 ft under it.
10:00The family loses each other in symptoms.
10:08Days later, the flow drops.
10:13But the land does not go back to what it
10:15was, where the current turned hardest.
10:20The riverbed has been scoured out by
10:22several meters.
10:25Water settles into those hollows as a
10:28chain of deep pools.
10:32Open water is Nile crocodile country.
10:38The way this land divides power is
10:40simple.
10:42Every species is strongest [music] in
10:44one medium
10:46and weaker the moment it steps out of
10:49that medium.
10:51Lions can swim.
10:55Lions simply hate doing it.
10:59Wet fur makes a lion heavier,
11:03slower, and strips away the burst of
11:06speed, which is this species single
11:10largest weapon.
11:12For a lion, deep water is the last
11:16option on the list.
11:18Impala
11:27understand that rule better than
11:29anything else out here. They drink fast.
11:33They drink in turns.
11:38And none of them stands at the water
11:40line longer than it has to.
11:44Here time spent beside water is the risk
11:48itself
11:50counted in seconds.
11:54And this stretch of river changes owner
11:57by the hour. [music]
12:07Through the day, hippos lie submerged to
12:11keep their skin from splitting in the
12:13sun.
12:16No species here owns the river outright.
12:23African wild dogs do not avoid water.
12:27[music]
12:30They use it. The pack will go straight
12:33in to pin prey many times its own size.
12:40For this species, open water is a second
12:44wall to drive prey against.
12:52Greater kudu sit among the largest
12:55antelope in Africa.
12:58A fullgrown ball reaches close to 300
13:03kg.
13:05The most remarkable thing about this
13:07species is not the horns. It is the
13:10ears.
13:12Kudu ears are unusually wide for the
13:15size of the head and they rotate
13:18independently.
13:20This animal hears a hunting pack long
13:23before it sees one.
13:26White stripes down the flank break up
13:30the outline of the body and fold it into
13:33the shadow of dead branches.
13:38>> [music]
13:38>> That is why greater kudu are called the
13:42gray ghost of Africa.
13:45An adult kudu can clear more than 2 and
13:48a2 m.
13:51Very few predators on the savannah can
13:54follow that.
13:56The list of species that hunt greater
13:58kudu
14:00is short but every name on it carries
14:04weight.
14:06Lion, spotted hyena,
14:10and African wild dog.
14:14Kudu have one weakness.
14:17The species accelerates hard over a
14:20short distance,
14:23but it is not built for the long runs.
14:26If the chase runs long enough,
14:29every advantage it has expires.
14:38African wild dogs are the most efficient
14:41hunters in Africa.
14:44A single African wild dog
14:48weighs around 25 [music]
14:50kg.
14:52More than 10 times lighter than a ball
14:55could do. The success comes from
14:59organization.
15:02Starting with how the pack decides
15:05anything at all.
15:11As the dogs close, the kudu accelerates.
15:24That is exactly what the pack was
15:27waiting for.
15:31Swimming well is one thing. Having
15:34something to push against is another.
15:38The kudu does the opposite of what its
15:41own instincts usually say.
15:46It does not look for a way out onto the
15:49bank.
15:51It stays in the one place where the pack
15:54cannot use its [music] strength.
15:57The standoff ends in failure,
16:11a war of attrition.
16:14In this kind of fight,
16:17both sides start losing from the first
16:20second.
16:22The pack loses energy and time
16:26and loses the chance to go find an
16:29easier animal somewhere else.
16:35The kudu loses strength far faster,
16:40but it only has to stretch this out long
16:44enough.
16:46For African wild dogs, water is a
16:49weapon.
16:52For greater kudu, water is a shield. For
16:56lions,
16:58water is simply something lying across
17:01the route
17:04to be crossed when nothing else is left.
17:11A pride raised on dry savannah, forced
17:15into water for the first time, has
17:18nothing to fall back on but instinct.
17:23[music]
17:27Out of every big cat, only one species
17:32lives as [music] a group.
17:34The lion pride is the single exception.
17:42and it is built on the females.
17:46The lionesses in a pride are usually
17:49sisters
17:51and they stay where they were born for
17:53life.
17:55The males do not.
17:58At a certain age, they are pushed out
18:02and have to find another pride to take.
18:09The evicted males usually form
18:12coalitions
18:14holding the bond together with head
18:17rubbing, necklicking
18:21and with a roar that carries close
18:24[music] to 10 km.
18:30But the most interesting part sits with
18:34the females.
18:36Lionesses in the same pride tend to come
18:40into season at almost the same time
18:45and give birth within weeks of [music]
18:47each other.
18:50In this territory, something has just
18:53happened.
18:56A new male coalition has beaten [music]
18:59the old one
19:03and taken control of the pride. [snorts]
19:07The new males will remove the unweened
19:10cubs [music] of the previous generation.
19:14So, the females carry their litters
19:16sooner.
19:20This is one of the coldest mechanisms in
19:23the natural world.
19:27And it exists for a very specific
19:30reason.
19:32A female raising cubs will not breed
19:35again for close to 2 years.
19:39And a male coalition typically holds a
19:43pride for about 2 years
19:47before another coalition takes it away.
19:56A lioness with cubs has no option left
20:00but to move them out of the territory
20:02and they have to go before it is too
20:05late.
20:07They leave at the worst possible time of
20:09year to be traveling.
20:20The wet season does not arrive gradually
20:23in this country.
20:25It arrives like a door thrown open.
20:33[music]
20:36The whole land is redrawn in a matter of
20:39days.
20:42>> [music]
20:44>> The returning water also puts the
20:46largest herds in Africa on the moon. The
20:50shallow crossings
20:53hold the highest density of crocodiles
20:56anywhere on the river.
20:59This species does not have to go looking
21:02for the migration.
21:05It only has to know where the migration
21:08will pass.
21:13The danger is not that the river is
21:15deeper.
21:19It is that the river is opaque and
21:22impossible to read.
21:27On the Mara River, researchers set out
21:30to measure the scale of it.
21:34In an average year, more than 6,000
21:38wilderbeast drown at the crossing
21:41points,
21:44not from predation, but from crowding
21:47and exhaustion.
21:50That mass is the equivalent of nearly 10
21:53blue whales going into a single river
21:57year after year.
22:00And none of that mass disappears.
22:05The river takes then hands it back to
22:08its own system.
22:14Kai water is also the season when the
22:16Nile crocodile
22:18gets every advantage back.
22:22Along both jaws of a Nile crocodile sit
22:26thousands of tiny sensory pits. Those
22:31pits read pressure in the water.
22:35An animal putting a foot down several
22:38meters away makes one very small ripple
22:44and the crocodile receives everything it
22:47needs to know.
22:50In other words, the thing that makes
22:52this river blind for every other species
22:57means nothing at all to the animal lying
23:00under it.
23:04In this country, what cannot be seen is
23:08what should be feared.
23:12A motionless Nile crocodile [music] can
23:15hold its breath for more than an hour.
23:20Time is the one asset it holds more of
23:24than anything around it.
23:26[music] A crocodile cannot chew because
23:29its teeth are built only [music] to
23:32hold.
23:34So, anything it catches has to be
23:37gripped and rolled until a piece comes
23:40away small enough to swallow.
23:48And for the same reason, every species
23:51that has to cross this river now is
23:54playing a hand that was dealt face down.
24:00Not because the opponent is stronger,
24:04but because the opponent picked its seat
24:07first.
24:18The adults know exactly what lies
24:21between them and the far bank.
24:24For a pride, deep water is where every
24:28advantage
24:29this species has
24:32stops working at once.
24:35Even for a grown lion, swimming deep
24:38water is a rare thing.
24:41Behind them is a territory that has just
24:44changed hands.
24:47There is no other option left to weigh.
24:54Cubs can swim by instinct,
24:58but only well enough not to sink.
25:02Keeping the cubs against her side
25:06is the whole of what a lioness can do in
25:10a situation like this.
25:21[music]
25:26[music]
25:31The strike comes from below.
25:39The calls that follow are goodbyes.
25:43The river does not answer.
25:50Half of all lion cubs
25:54do not survive their first year.
25:58Every cub that reaches hunting age is a
26:03win for the whole pride, not for one
26:06mother alone.
26:08And every cub that does not get there is
26:11a gap the whole pride carries.
26:16The ones that are left take comfort in
26:19each other
26:21with exactly the gestures that have held
26:24this pride together all along.
26:29For a pride, losing a cub is not only
26:32losing an animal.
26:35Wow.
26:37Every litter is close to a 2-year
26:40investment by the whole pride.
26:43From birth to the day a cub can hunt for
26:47itself.
26:49The hard part is that the pride did
26:52everything right.
26:55Leaving a territory that had just
26:57changed hands was the correct decision.
27:08Staying tight to the mother in the water
27:11was the correct decision.
27:15Doing everything right can still not be
27:18enough.
27:20And that is the first lesson.
27:26The savannah teachers.
27:29In the first story, falling water
27:33exposed an opening
27:35[music]
27:39and the price was the standing of the
27:42one who took it.
27:45[music]
27:46In the second story, rising water became
27:50a shield
27:52and the price was the condition of an
27:56entire hunting pack.
27:59In the third story, the water took
28:02nobody's side,
28:04and the price was counted in a life.
28:10For the cubs that remain, that crossing
28:14did not end when they reached the bank.
28:18Lions learn their territory by walking
28:22it alongside older animals.
28:28Which roots are safe? Which pools to
28:31avoid?
28:33Which stretch of river to never enter?
28:38All of it is passed down that way.
28:44Which means today's lesson will travel
28:47with this pride for years.
28:55The cubs that survive will lead their
28:58own litters around the stretch of river.
29:06Even though none of them will remember
29:09exactly why.
29:12On the African savannah, experience is
29:16not written down anywhere.
29:21It is only paid for by the ones that do
29:25not arrive.
29:28It is not the water level that decides
29:32how dangerous a place is.
29:46It is the fact that the level has just
29:49changed.
29:54And not one of those three stories has a
29:57villain in it.
30:00The crocodile was defending a nest. The
30:03wild dogs were feeding a litter. The
30:06pride was looking for somewhere safer.
30:16The only thing repeated in all three is
30:20the water and the way it rewrites the
30:22rules. Every time the level moves, every
30:27turn of season opens a gap.
30:34On the African savannah, no species is
30:37exempt from the cost of their death.
30:43Including the strongest animal in the
30:46country, the only fixed thing in this
30:49land
30:52is that the water will keep rising and
30:55falling.
31:00And every time it changes state, the
31:02entire order of power around it is
31:06arranged again from the start.
31:10No species here chooses the season it is
31:13born into.
31:16It only chooses how to answer when that
31:19season turns.
31:23This land promises nothing about
31:26fairness.
31:29It runs on one rule. Anything that gives
31:33life can take life away.
31:39A nest under sand. A deep stretch of
31:43river. One crossing and no other.
31:50The strongest animal in all three
31:52stories is also the one that lost the
31:55most.
31:59In this country, sitting at the top of
32:02the food chain does not mean safety.
32:08[music]
32:10It only means paying somewhere else. The
32:14only thing left to do is keep moving.
32:20on the African savannah. That is the
32:23real definition of winning.
32:29So after three stories, who do you think
32:33understands the water best?
32:39the species that lives in it, the
32:43species that dares to go in,
32:49or the species that has no choice but to
32:52cross it.
32:56Leave your answer in the comments. There
32:59are many more remarkable places still
33:03untold.
33:11This is the Crackato volcano
33:16on the night of September 4th, 2026
33:22right as its eruption was reaching its
33:26peak subclinian phase.
33:31video footage courtesy
33:34of the Tik Tok account Indomi Goring.
33:38In the video, we can witness
33:44a truly extraordinary sight.
33:48Crackato unleashing a sustained lava
33:52fountain,
33:55soaring up to 1,100
33:58m.
34:00or roughly 3,69
34:05ft.
34:08Yet in truth, the lava fountains from
34:12Crackato's most powerful explosive
34:15events
34:20since 1883,
34:22reached even higher heights,
34:26quite likely hitting the 1,500
34:30m mark.
34:34While that number sounds out of this
34:37world,
34:39when stacked up against other volcanoes
34:44such as Wuang or Lewi
34:49back in 2024,
34:52those events produced
34:55lava fountains that reached vastly
34:59higher.
35:02Regardless, the good news is this
35:05intense surge
35:08was short-lived.
35:11Right now, Krakatau is still actively
35:15erupting,
35:18except its current intensity has lost
35:21its punch compared to earlier.
35:26Of
35:29course, it will take a little time to
35:31nail down the exact figures
35:35regarding the true scale of this
35:37eruption.
35:40Though my initial estimate
35:43placed it at the very low end
35:50of the volcanic explosiveness index 4.
35:56There is one metric with a fairly solid
35:59correlation to eruption magnitude
36:03that we can rely on. the total amount of
36:06sulfur dioxide gas dust released into
36:09the atmosphere.
36:15This time around, the explosive surge
36:19released
36:21roughly 350,000
36:24metric tons of sulfur dioxide,
36:29putting it on par with the eruption of
36:31the Kilbuko volcano back in 2015.
36:37However, my take is
36:43that Crackkottow actually yielded a
36:46smaller volume of lava than Kaluku.
36:51The reason is that the sulfur dioxide
36:55output per cubic meter of magma
37:00tends to be inversely proportioned to a
37:04degree with the silica content.
37:09The eruptive material from Kalbuko
37:13in 2015 was predominantly andic
37:20whereas for crackkatau in 2026.
37:26I suspect it ranges from silicarrich
37:29basaltt
37:31to low to medium grade basultic andite.
37:37This still aligns seamlessly
37:44with the volcanic explosiveness index 4
37:47classification.
37:51I also want to remind everyone
37:54that by definition a volcanic
37:57explosiveness index 4
38:01is 100 times smaller than an index six.
38:09which was the level reached by Krakattow
38:13back in 1883
38:15and Honda Tonga in 2022.
38:20While Crackkatau put on an incredible
38:22explosive display this time,
38:26its scale does not even make the cut for
38:29the top 50 largest explosive eruptions
38:32on Earth.
38:37since 1883,
38:41ranking right around 64th place.
38:57[music]
38:59After closely examining Crackkatau's
39:01appearance following the 2026 eruption,
39:07it is clear that the volcanic peak has
39:09undergone a striking transformation.
39:16To begin with, the volcanic cone formed
39:19after the 2022 eruption
39:24appears to have been completely blown to
39:27smitherines.
39:30likely due to the second peak explosive
39:33phase
39:36occurring around 400 a.m. on September
39:395th.
39:41It is not that the entire island of Anak
39:44Krakatau disappeared,
39:47but rather just the low profile volcanic
39:51cone
39:53that had risen from the crater since
39:552022.
39:58In addition, a portion of the crater rim
40:04dating back to the 1950s
40:08was also torn away,
40:12leaving Anarch Crakatau,
40:15shrinking on one side while expanding on
40:19another.
40:22It shrunk because constant explosions
40:28pulverized a massive amount of rock.
40:33But subsequently, a lava flow
40:37boasting an unusually large volume,
40:43at least for Crackot's scale, filled in
40:47the lost area.
40:52while pushing the island farther into
40:55the sea
40:58with a brand new lava plane
41:04added to the showering of ash and ponus
41:08along with raining volcanic debris.
41:13The actual elevation of the island may
41:16very well have increased even further.
41:20So yes indeed the face of Krakatau has
41:24gotten a total faceelift after this
41:27latest blast.
41:33Indonesia's largest international
41:36airport Sakarno Hattera in Jakarta
41:40was forced to cancel hundreds of flights
41:43due to dense ash falling and hanging in
41:47the air.
41:58posing serious hazards to aircraft. This
42:01directly impacted business operations
42:04and cost airlines a pretty penny.
42:15It appears that all the compressed gas
42:18and long accumulated pressure have
42:21mostly been released and the cap sealing
42:25the crater is no longer there either.
42:32Even so, the 3 km restricted zone around
42:36Cracker Town remains firmly in effect
42:40and everyone must strictly stay out.
42:57In northern Botswana
43:00lies one of Africa's greatest mystery.
43:04The Sevuti Channel does not follow the
43:06rain.
43:08It follows movements deep beneath the
43:11ground.
43:17For years, the channel ran full,
43:22turning the marsh into a green paradise.
43:39Then the Savity Channel ran dry
43:45[music]
43:50for decades.
43:59Every species that stays here
44:03must live with that unpredictability.
44:07This year the channel is dry again.
44:12And the drought holds.
44:21One water hole remains.
44:24It is the center of all life here
44:33and the center of every death.
44:40Around it stretches a tightly woven web.
44:52>> [music]
44:56>> At the top of that web sit four empires.
45:02The lion pride led by Queen Amara.
45:11It has held this ground for generations.
45:21>> [laughter]
45:22>> The Maro clan, famous as scavengers, but
45:26in truth misunderstood hunters.
45:42The ember pack
45:46surviving on its own by rules of its own
45:51making.
45:57And Kito,
46:01a solitary leopard,
46:05the one who always pays each time the
46:10other three empires collide.
46:15But the most dangerous of all may be the
46:19one that belongs to no grassland.
46:25It was there before the season of thirst
46:29began,
46:34and it will be there long after the
46:36thirst has passed.
46:42The days ahead hold only one question.
46:48When every territorial border closes in,
46:53which species will rule the savannah?
46:58[laughter]
46:59Comment on a species before we continue
47:02the journey of Amara Pride.
47:12Huh.
47:29First drives Amara's pride off its
47:33ancestral ground.
47:38The prey has followed the water.
47:42To live the lion pride must follow the
47:46prey.
48:11For a pride with cubs, this is the most
48:15dangerous gamble of all.
48:24The Nile crocodile,
48:29the oldest predator in this land.
48:36almost unchanged for millions of years.
48:42It picks one spot and holds still
48:48for hours,
48:51only its eyes above the surface.
49:08waiting patiently for a single mistake.
49:17And that mistake arrives.
49:23Its V-shaped jaws are among the
49:26strongest in the animal world.
49:29Nearly 70 teeth built to hold prey and
49:33[music] never let go.
49:51Queen Amara never takes her eyes off her
49:54cub. Not for a second.
49:57And that vigilance alone drags the cub
50:01back from the line between life and
50:04death.
50:12For lions,
50:14fewer than half of all cubs survive
50:17their first year.
50:24Even where no crocodile jaws wait
50:27beneath the water,
50:30this river is the first link in a much
50:33larger web
50:36where hippos hold the deep water.
50:42Crocodiles control the crossings
50:45and every land animal depends on both.
50:52In a single morning,
50:56it reveals several rules running side by
51:00side.
51:11The ambusher stays loyal to one stretch
51:14of water
51:17while the pride claims ownership through
51:20the strength of numbers.
51:24One shrinking river
51:27and already more than two ways to
51:30declare who owns the territory.
51:46Dawn belongs to the grazing herds.
51:54A single mouthful of water here can cost
51:58a life.
52:00No animal drinks without lifting its
52:03head to watch.
52:06Where life gathers thickest,
52:09death stands closest.
52:19But by midday, the whole water hole must
52:22give way.
52:40Elephants are large enough that no
52:43predator dares provoke them.
52:52Yet they only pass through,
52:55leaving the water behind for those who
52:58stay to fight over it.
53:06>> Meanwhile,
53:08jackals live off the mistakes of others.
53:17An entire tiered order turns around one
53:21shrinking pool.
53:25[music]
53:32With every passing day, the water pulls
53:35back a little further
53:41and the web draws tighter.
53:47[music]
53:51Every species registers it and every
53:55species is choosing a side.
53:59At the edge of the water, the emberac
54:02has guarded [music] this ground longer
54:04than any other empire.
54:11They have held it as though time itself
54:14were on their side.
54:18But in a season of first, a long history
54:23saves no one.
54:28Amara's pride is closing in.
54:39The African wild dog is the most
54:42efficient predator in Africa.
54:46Its hunting success rate can reach 80%.
54:56>> Three times the figure for lions.
54:59[music]
55:10But that success is fragile because
55:13after almost every hunt,
55:16[laughter]
55:20part of the prize is stolen by someone
55:23else.
55:32>> [laughter]
55:34>> What truly keeps a wild dog pack alive
55:40is its bond, not a line drawn on the
55:43ground.
55:45The whole pack raises the young,
55:49feeding pups that are not their own.
55:55And because they need a pack large
55:57enough to survive today, across the
56:01entire continent,
56:05fewer than 5,000 African wild dogs
56:09remain,
56:14but this time the pack's encircling
56:18tactic.
56:25runs into a limit it cannot cross. Raw
56:29weight.
56:36A male lion weighs 5 to 10 times as much
56:39as a wild dog.
56:57The wild dog pack holds for a moment,
57:02then breaks.
57:04They are forced off their ancestral
57:07ground, carrying a loss that will never
57:10be replaced.
57:14For a species already on the edge of
57:17extinction,
57:19losing territory is a long step closer
57:23to the end.
57:27And this is how the land works as a web.
57:34Each time one species shifts, the whole
57:38system moves with it. [laughter]
57:42The one that loses ground pushes another
57:46aside
57:49and that one pushes into the territory
57:53of a third.
57:58So what do you think wins
58:01numbers and tactics
58:06or the power of a single individual?
58:13But the throne, the pride, just one will
58:17not hold until morning.
58:23Because in the dark, the third empire is
58:27already moving in.
58:48Night swallows the thirsting kingdom
58:52whole.
59:05Keto lives a solitary life,
59:19hunting alone, eating alone,
59:25then dissolving into the dark. Before
59:31dawn arrives,
59:37the leopard is the best climber among
59:40the big cats.
59:46Strong enough to haul a kill high into a
59:50tree
59:53where no other claws can reach it.
59:58But the price of a solitary life is
1:00:01this.
1:00:06The kill gets stolen
1:00:10by lions and by hyenas alike.
1:00:16And so for the leopard, survival means
1:00:20vanishing before it is ever seen.
1:00:40A new cream has arrived.
1:00:45But this territory has never been easy
1:00:48to rule.
1:00:53Even the prey here is strong enough
1:01:01to turn the hunter into the hunted.
1:01:13[groaning]
1:01:17>> [snorts]
1:01:20>> Carelessness
1:01:22always has a price,
1:01:26[laughter]
1:01:29which is exactly why reputation can
1:01:32mislead.
1:01:39For decades, spotted hyenas carried the
1:01:43name of opportunistic scavengers.
1:01:51But in reality,
1:01:54between 60 and 90% of their food
1:01:58comes from hunts they make themselves.
1:02:05They are hunters in their own right.
1:02:12Even the famous laughter [laughter] is a
1:02:15signal of tension and rank, not of
1:02:19[laughter] joy.
1:02:21Within the clan, power passes down the
1:02:25female line.
1:02:28The offspring of a ranking female
1:02:33can outrank even the oldest adult males.
1:02:39The real strength of hyenas lies in how
1:02:43they organize. [crying]
1:02:47Small groups faming out to patrol a vast
1:02:51range,
1:02:53then converging in moments.
1:02:58Every time the territory is threatened,
1:03:05[laughter]
1:03:07the migrating herds pass through like a
1:03:10current,
1:03:12feeding everything here.
1:03:16but never stopping long enough to own
1:03:19anything.
1:03:22It is the ones that stay,
1:03:25the ones that hold a territory that will
1:03:29fight for it to the end.
1:03:34And at the center of that web is the
1:03:37water hole,
1:03:42the one resource that cannot be moved.
1:03:45And therefore the one worth trading
1:03:48everything for.
1:04:01>> [music]
1:04:07>> with the male lion coalition patrolling
1:04:10the outer ridge
1:04:15and Queen Amara hunting far away.
1:04:20The water hole is left to young lions
1:04:24and a few females.
1:04:29Its strongest line of defense now empty.
1:04:41Now every advantage inverts. When a
1:04:44baboon is cornered with nowhere left to
1:04:47go,
1:04:50it can stand its ground against a
1:04:53lioness. [music]
1:04:57A single male lion, when it has to, can
1:05:01hold off a dozen hyenas.
1:05:11But at this water hole, there is no
1:05:14male.
1:05:21and a lone lioness can do nothing.
1:05:25Hyenas read this moment better than
1:05:27anyone.
1:05:30A hyena clan may number only a few dozen
1:05:34or climb past a 100.
1:05:39What makes them formidable is cold
1:05:42calculation.
1:05:46waiting, counting, and picking the exact
1:05:50moment an opponent is weakest.
1:06:07[laughter]
1:06:20pressure and timing are enough. Within
1:06:23minutes,
1:06:27the most important water hole in the
1:06:29territory changes hands for the second
1:06:33time in a single day.
1:06:37In your opinion, does this battle mean
1:06:42[laughter]
1:06:46hyenas are stronger than lions?
1:06:51Let us know your opinion in the
1:06:53comments.
1:06:58But now
1:07:00the young lions lose for lack of
1:07:02numbers,
1:07:04not lack of [laughter] courage.
1:07:13Dawn returns the land to stillness.
1:07:17[laughter]
1:07:19The Hyena Clan walks the new border,
1:07:24leaving scent on every clump of grass,
1:07:29a quiet message that this territory now
1:07:33belongs to them.
1:07:37>> [music]
1:07:42>> But the river remains a territory no one
1:07:46contests.
1:07:48[music]
1:07:52In the water, the Nile crocodile reaches
1:07:56its full power.
1:08:07with a bite roughly seven [music] times
1:08:09stronger
1:08:17than an adult lion's.
1:08:20Yet those same jaws are delicate enough
1:08:29to carry an egg without breaking it.
1:08:38Power and precision in the same bite.
1:08:47But even against the oldest and most
1:08:49powerful predator here,
1:08:58there are still those willing to stand
1:09:00up to it.
1:09:08On the African savannah, numbers
1:09:13sometimes beat teeth and claws.
1:09:23And the African savannah is revealing
1:09:26what it truly is,
1:09:29[music] a complex web of survival.
1:09:36Every predator is both a hunter and prey
1:09:39[music] to another predator.
1:09:42The African fish eagle
1:09:45with a wingspan over 2 m
1:09:50takes its fish in midair.
1:09:54Jackals trail the hyenas to pick up what
1:09:58is left.
1:10:01But a single defeat still does not shake
1:10:04the standing of the lion.
1:10:11Of all the empires here, they hold the
1:10:14largest territory.
1:10:20And they are the only species whose
1:10:23healthy adults have almost no natural
1:10:27predator.
1:10:33Four empires, four answers [music] to
1:10:36the same question of survival.
1:10:41Lions rule through numbers and power.
1:10:45Hyenas through organization.
1:10:52Wild dogs through loyalty.
1:10:56and a leopard true invisibility. [music]
1:11:03On this African savannah, power always
1:11:07belongs to whoever holds the right
1:11:10resource at the right moment.
1:11:18And a single lapse of attention is
1:11:21enough to redraw the entire map of
1:11:25survival.
1:11:29Which species changed the way you see
1:11:32the wild today?
1:11:37The ambusher beneath the water, the pack
1:11:41that held its ground for generations,
1:11:46or the clan that swept in at night. Tell
1:11:52me right below.
1:11:59[music]
1:12:07Hundreds of ticks
1:12:12in folds of skin that a mouth, leg, or
1:12:16tail can never reach on their own.
1:12:27No solitary defense has ever proved
1:12:31sufficient.
1:12:36But the Cape Buffalo has found a
1:12:39solution underwater.
1:12:45Wherever the ticks are thickest,
1:12:50that is where the fish swarm in the
1:12:53greatest numbers.
1:12:56For the school of fish, this is a
1:12:59nutrientrich feast.
1:13:04Meanwhile, above the surface,
1:13:07the ticks become a familiar food source
1:13:10for yet another species.
1:13:21The slender beak of the reduild oxpecker
1:13:25can probe into the deep crevices of skin
1:13:28that the [laughter] fish could never
1:13:30reach.
1:13:33There is no overlap between the fish and
1:13:36the oxecker on the African savannah.
1:13:44Survival is not always dictated by
1:13:46confrontation.
1:13:48Sometimes it lies in simple partnerships
1:13:57where every species involved reaps its
1:14:00own reward. It is precisely these quiet
1:14:04alliances
1:14:08that play a vital role in keeping the
1:14:12entire ecosystem in balance.
1:14:26The Amazon rainforest spreads across
1:14:29nine [music] countries with Brazil
1:14:31holding about 60% of its total area.
1:14:41This is the largest tropical rainforest
1:14:44on Earth where 390 billion trees of some
1:14:5016,000 species.
1:15:06Stand shouldertosh shoulder beneath a
1:15:09canopy 100 to65
1:15:13ft
1:15:29about 30 to 50 m above the found.
1:15:46Millions of years ago, the rise of the
1:15:49Andes pushed the great rivers eastward,
1:15:52carving out
1:16:03The water system that feeds this vast
1:16:06living cathedral.
1:16:20This forest stores between 90 and 140
1:16:25billion tons of carbon.
1:16:43And throughout its history, it has
1:16:46absorbed about 2 billion tons of CO2 a
1:16:50year.
1:17:01Though that figure is falling as
1:17:03deforestation
1:17:05accelerates.
1:17:25If the Serengeti is an open stage where
1:17:28everything unfolds in plain sight.
1:17:52The Amazon is a closed labyrinth where
1:17:55even the sunlight must struggle to reach
1:17:58the ground.
1:18:30And at the heart of that labyrinth,
1:18:32among the shafts of light piercing the
1:18:35canopy into an ancient cathedral,
1:18:41a shape moves. A pair of amber eyes
1:18:46flares to life for an instant at the
1:18:49forest floor.
1:19:05Then vanishes behind the massive
1:19:07buttress root of a titanic ancient tree.
1:19:26This is the jaguar, the apex predator
1:19:30enthroned, unchallenged [music]
1:19:33at the very top of the Amazon food chain
1:19:36across the centuries.
1:19:45Countless indigenous civilizations of
1:19:48the Americas revered the jaguar as a
1:19:51sacred symbol of power and the spirit
1:19:55world.
1:20:01That magnificent suntanned orange coat
1:20:05is dappled with black rosettes.
1:20:08Each individual carries a unique pattern
1:20:18as if the ancient forest itself had
1:20:21inscribed an identity onto every great
1:20:25cat.
1:20:38The Tupiguarani people named it Yagwa,
1:20:42meaning the one who kills with a single
1:20:45leap.
1:20:48And the name is no exaggeration.
1:20:56A jaguar is about 1.8 m long and weighs
1:21:0170 to 120 kg.
1:21:09Smaller than a lion, yet armed with the
1:21:12strongest bite of any big cat on Earth.
1:21:24where the lion clamps down on the throat
1:21:26to suffocate its prey.
1:21:31The jaguar bites straight through the
1:21:34skull or the neck vertebrae.
1:21:40A single devastating strike, precise and
1:21:44decisive, with no need for a drawn out
1:21:48struggle.
1:21:57But what makes the jaguar the true king
1:22:00of the Amazon is not only its bite. It
1:22:04is the ability to move seamlessly
1:22:07through every layer of space in its
1:22:10world.
1:22:17It plunges into the rivers to hunt
1:22:20cayman in their very own domain. It even
1:22:23hunts turtles, driving its canon eyes
1:22:27through the armored shell.
1:22:36No predator in the Amazon [music] or
1:22:39indeed anywhere on Earth can operate so
1:22:42seamlessly across [music]
1:22:44so many ecological layers.
1:22:52The territory of a solitary jagger spans
1:22:55about 26 to 103 square kilm
1:23:00and it patrols every inch alone.
1:23:09No pack, no allies, not a single warning
1:23:14roar.
1:23:21Only silence [snorts] and a flash of
1:23:24amber eyes in a single heartbeat among
1:23:28the leaves. Then gone.
1:23:37The Amazon River, carrier of the
1:23:40greatest freshwater flow on the planet.
1:23:51>> [music]
1:24:14>> More than 2,200
1:24:17fish species live in these waters.
1:24:25about 15%
1:24:27of all freshwater fish on the planet,
1:24:31creating a density of biodiversity.
1:24:42No other river system on Earth can
1:24:45match. The unhagger, also called the
1:24:49snake bird, is the strangest hunter
1:24:52beneath the surface.
1:25:01And its common name is no accident. When
1:25:04it dives, its feathers are not
1:25:07waterproof at all.
1:25:17Unlike almost every other water bird,
1:25:21which sinks its whole body below the
1:25:23surface, leaving only the long winding
1:25:27neck above the water,
1:25:35looking exactly like a snake gliding
1:25:37through the current.
1:25:40But those water soaked feathers [snorts]
1:25:42are not a flaw.
1:25:53They reduce buoyancy, letting the snake
1:25:56bird dive deeper and maneuver underwater
1:26:00more nimly than any other bird.
1:26:12When it spots prey, it does not give
1:26:16chase. Instead, it drives its
1:26:18dagger-like beak straight through the
1:26:21fish's body.
1:26:33flips the fish into the air and swallows
1:26:37it whole.
1:26:47After every hunt, the snake bird must
1:26:50perch on a branch by the river and
1:26:53spread its wings to dry in the sun.
1:27:02creating an iconic silhouette
1:27:06that anyone who has visited the Amazon
1:27:09recognizes at once. [snorts]
1:27:42Deeper in the river, the piranha, the
1:27:45fish with the worst reputation and the
1:27:48most feared in all the Amazon.
1:27:55Patrols in schools of 20 to 30.
1:28:00Their teeth are sharp as a surgeon's
1:28:02scalpel.
1:28:11interlocking like a sawblade with a bite
1:28:14force reaching 30 times their body
1:28:17weight.
1:28:23A school of piranha can strip clean a
1:28:27large carcass in just a few short
1:28:30minutes.
1:28:43Not because any single fish is
1:28:46especially strong, but because they
1:28:49coordinate their attacks with a
1:28:51precision that is genuinely terrifying.
1:29:12But the truth is far from the myths of
1:29:14the movies.
1:29:16When food is plentiful, the piranha eats
1:29:19mostly plants and carry them.
1:29:23[music]
1:29:33>> [laughter]
1:29:38>> They turn to hunting live prey only when
1:29:41truly driven to desperation.
1:29:44The piranha is not the frenzied killer
1:29:48the movies invented.
1:30:04The piranha is not the frenzy killer the
1:30:08movies invented. It is the river's
1:30:11cleanup crew keeping the ecosystem
1:30:14clean.
1:30:19But above all those underwater hunters
1:30:23stand two creatures even the jaguar
1:30:26treats with caution.
1:30:34The black cayman reaches 4 to 5 m in
1:30:39length and weighs about 300 kg.
1:30:52The black cayman is a supreme ambush
1:30:56predator and the largest member of the
1:30:59crocodilian family in all the Americas.
1:31:09>> [music]
1:31:12>> It lies motionless for hours on the
1:31:15surface,
1:31:21showing only its eyes and nostrils,
1:31:24looking exactly like a rotting log
1:31:27drifting lazily on the current.
1:31:37Prey comes to the water's [music] edge
1:31:39to drink, suspecting nothing. Because
1:31:42that log was there long before they
1:31:45arrived.
1:31:51The black cayman needs no speed. It
1:31:55needs patience.
1:32:01And 85 million years of evolution have
1:32:05honed that patience to absolute
1:32:07perfection.
1:32:12But the black cayman is not the only
1:32:15ruler of the water kingdom.
1:32:21The giant anaconda,
1:32:245 to 6 m long and over 100 kg,
1:32:29kills by constriction.
1:32:37Coil after coil of massive muscle wraps
1:32:41around the victim,
1:32:47tightening a little more with each
1:32:49breath the prey exhales
1:32:55until the heart stops entirely. The
1:32:59anaconda has no reason to hurry.
1:33:08It can hold its prey in that suffocating
1:33:11grip for tens of minutes, patiently
1:33:15waiting as each final breath grows
1:33:18weaker.
1:33:26Until at last only silence remains.
1:33:35Once the prey is dead, the anaconda
1:33:38swallows it whole,
1:33:44opening its jaw joints to an almost
1:33:47unimaginable degree, engulfing victims
1:33:51many times wider than its own head.
1:34:03If the black cayman is a sword, swift,
1:34:08precise, lethal.
1:34:14Then the anaconda is a moose,
1:34:19slow, patient, and utterly impossible to
1:34:24escape.
1:34:41the African savannah.
1:34:46Deep in the dry season,
1:34:49the grass has turned yellow.
1:34:52Water survives in only a few scattered
1:34:55pools.
1:34:58Here,
1:35:01water redraws the entire map of power.
1:35:06This year, [screaming]
1:35:08the dry season came early.
1:35:12Pools that normally hold water all year
1:35:16ran dry weeks ago.
1:35:23The distance between grazing ground and
1:35:26water
1:35:27grows wider every day.
1:35:31Every trip to drink
1:35:34means hours crossing open ground
1:35:38with nowhere to hide
1:35:42for prey. That is the most dangerous
1:35:44stretch of the day.
1:35:48A typical lion pride
1:35:52is led by the most experienced lioness
1:35:57with a few adult males
1:36:00and a group of females raising cubs
1:36:03together.
1:36:05This species hunts by role,
1:36:08not by individual.
1:36:12On a still night,
1:36:15a male lion's roar can carry 8
1:36:18kilometers.
1:36:20It marks the edge of the territory
1:36:24and warns off intruders.
1:36:28But by day,
1:36:31on the hunt,
1:36:34every signal passes through the eyes.
1:36:38A medsized lion pride needs five to
1:36:42seven large kills a month to feed
1:36:46everyone,
1:36:48including cubs too young to hunt.
1:36:53A shortfall of only a few weeks
1:36:57is enough to push the whole pride,
1:37:01the cubs above all,
1:37:05toward collapse.
1:37:07They have to take every chance
1:37:12that opens in front of them.
1:37:25>> [screaming and groaning]
1:37:34>> Today the target has been chosen.
1:37:39A lion needs to close within about 30 m
1:37:45before it can commit to the final
1:37:48charge.
1:37:51Beyond that range,
1:37:54a zebra's speed
1:37:57up to 65 kilometers per hour
1:38:02leaves any lion behind.
1:38:05[music]
1:38:07Zebras do not live alone.
1:38:12More eyes, earlier warning.
1:38:17[screaming]
1:38:17This zebra herd has come to break along
1:38:21first. [laughter]
1:38:25They cannot wait any longer.
1:38:28Even knowing the hunters will be there.
1:38:34A zebra is not passive prey.
1:38:38[music]
1:38:40One kick from those legs is enough to
1:38:44badly injure a fully grown lion.
1:39:11For the pride,
1:39:14timing decides [screaming] everything.
1:39:19[groaning]
1:39:22[screaming] But hunger
1:39:25has clouded the lioness's judgment.
1:39:46Heart rates spike.
1:40:06A lion's flatout sprint.
1:40:11lasts only a few hundred m.
1:40:17Their bodies build heat fast.
1:40:22Past the limit, they have to stop.
1:40:27No matter how close the prey still is.
1:40:34That is why most big cat hunts are
1:40:37settled in the first few seconds,
1:40:42not by a long chase.
1:40:57Numbers do not mean victory.
1:41:03It sounds cruel,
1:41:06but the presence of a lion pride
1:41:09keeps the zebra population healthier
1:41:13over time.
1:41:20The ones taken
1:41:23are usually the old,
1:41:27the sick, or the weakest of the young.
1:41:32Natural selection runs through them,
1:41:36leaving a population that is faster,
1:41:39stronger, and far more alert.
1:41:48A failed hunt today
1:41:52means a longer, hungry night
1:41:56for the youngest members of all.
1:42:00Cubs depend completely on the pride
1:42:05for roughly their first two years.
1:42:10They cannot hunt for themselves and
1:42:13cannot defend themselves
1:42:17against hyenas
1:42:20or strange males.
1:42:24Their fat reserves are running down.
1:42:32For the cubs,
1:42:34that limit arrives far sooner
1:42:39than it does for the adults.
1:42:42No meal tonight.
1:42:48But no lion badly hurt either.
1:42:54Every zebra carries a stripe pattern.
1:42:59No other zebra shares like a
1:43:02fingerprint.
1:43:05A fool learns to recognize its mother
1:43:10by that pattern within its first hours
1:43:13of life.
1:43:25The high contrast stripes
1:43:29seem to confuse biting flies
1:43:34as they come into land,
1:43:39cutting the number of bites sharply
1:43:42compared with plaincoated animals.
1:43:48Natural armor refined across millions of
1:43:52years.
1:43:55A natural identity system
1:44:00running through hundreds of animals that
1:44:03look like one.
1:44:10Zebras are not only good at defending
1:44:12themselves.
1:44:16They shape the savannah itself.
1:44:21They eat the tall coarse grass
1:44:26[music]
1:44:27that comes up first after the rains.
1:44:37Once they move through, the softer
1:44:40growth underneath is exposed.
1:44:44the main food for the wilderbeast and
1:44:47dazelle that follow.
1:44:51They do more than share the grass
1:44:54layers.
1:44:57Zebra and wilderbeast often travel
1:45:00together through the dry season.
1:45:03Zebras have strong spatial [music]
1:45:06memory
1:45:09and usually lead the way to new grazing.
1:45:15Wilderbeast have sharper hearing and
1:45:18smell.
1:45:25They catch rain from far off and pick up
1:45:29hidden predators sooner.
1:45:39Each species covers what the other
1:45:42lacks.
1:45:44An alliance that needs no agreement.
1:45:53But that alliance only works inside the
1:45:56herd.
1:45:59One animal separated even by a few
1:46:03hundred meters.
1:46:06loses every part of it at once.
1:46:12Round one ends with a kick.
1:46:17Not a kill,
1:46:20but the next prey does more than kick.
1:46:25It stands its ground and fights.
1:46:42Deeper into the territory, the air
1:46:45changes.
1:46:50This is Cape Buffalo country,
1:46:57where even the most confident predators
1:47:00think twice before making a move.
1:47:05Cape buffalo
1:47:09live in large herds,
1:47:13sometimes several hundred strong
1:47:17led by the oldest females.
1:47:24Older bulls
1:47:28no longer strong enough to compete for
1:47:30the top position.
1:47:34tend to split off and live alone or in
1:47:37small groups.
1:47:41Locals call them the dagger boys.
1:47:46Alone, but far from weak.
1:47:50A single dagger boy can still drive off
1:47:54a group of lions
1:47:57if they corner him.
1:48:00The Cape Buffalo
1:48:03is one of the five most dangerous
1:48:06animals
1:48:10to face on foot in Africa
1:48:16alongside the lion, the elephant, the
1:48:20rhino, and the leopard.
1:48:25The pride, Africa's top predator.
1:48:30has to gamble
1:48:33against one of the toughest opponents
1:48:37it will ever meet
1:48:40on any list of Africa's most dangerous
1:48:43animals.
1:48:46The Cape Buffalo is always there.
1:48:52The reason is what they do when
1:48:55cornered.
1:48:59They counterattack without hesitation
1:49:05with enough force to roll a four-wheel
1:49:07drive
1:49:11where a zebra reacts alone.
1:49:16Cape buffalo defend each other as one
1:49:20body
1:49:22and will even hunt down a pride after an
1:49:26attack.
1:49:33A fullgrown Cape buffalo
1:49:37weighs close to a ton.
1:49:40Its hide is thick enough to be almost
1:49:43impossible to pierce.
1:50:05The hunt looks like it is slipping away.
1:50:21Behind them,
1:50:24the dominant male
1:50:26waiting only for the moment.
1:50:34A complete win.
1:50:40High above,
1:50:43dark specks [laughter] begin to circle.
1:50:47Vultures.
1:50:49They take no part in the hunt,
1:50:54but they know exactly when one has
1:50:57ended.
1:50:59What is left of the carcass will feed
1:51:03hyenas, vultures,
1:51:07and dozens of smaller species.
1:51:13On the savannah,
1:51:15a successful hunt
1:51:19never feeds only one animal.
1:51:27One Cape Buffalo can feed everyone for
1:51:31days,
1:51:35long enough to rest before they have to
1:51:38hunt again.
1:51:41For the first day after a big kill,
1:51:45the pride rarely strays far from it.
1:51:50They guard what is left, driving off
1:51:53anything.
1:51:55Hyenas or even other prides that comes
1:51:59too close too early.
1:52:04Only once they have eaten their fill
1:52:06does that line begin to loosen.
1:52:12Round two
1:52:14was not won by the fastest charge.
1:52:19It was one by a plan
1:52:23with two rolls.
1:52:26One side closing in,
1:52:30the other waiting for the opening.
1:52:34The exact division of labor a pride
1:52:37always relies on
1:52:40to bring down the largest prey.
1:52:44Which prey do you think
1:52:47is the most dangerous?
1:52:51Drop your answer below before the next
1:52:54survival fight.
1:53:01Not the zebra.
1:53:04Not the Cape Buffalo.
1:53:08The first two hunts taught the pride one
1:53:11thing.
1:53:13The bigger the prey, the higher the
1:53:16price of a mistake.
1:53:20But that same pressure has made the prey
1:53:23sharper,
1:53:28pushing the pride toward a target few
1:53:31predators would even consider.
1:53:36The most dangerous prey this pride has
1:53:39ever faced.
1:53:43stands almost 6 m tall
1:53:50on legs close to 2 m long.
1:53:57In popular culture,
1:54:00[music]
1:54:01the giraffe is treated as a gentle
1:54:03fitter,
1:54:05[music]
1:54:06almost harmless.
1:54:10To a lion pride,
1:54:13that picture has never been complete.
1:54:20An animal 6 m tall,
1:54:24close to two tons,
1:54:30with a kick that can drop a predator.
1:54:36Gentle is only half the truth.
1:54:43A giraffe's eyes pick out movement that
1:54:46[music] does not belong.
1:54:50from a very long way off.
1:54:55That is why zebra, wilderbeast, even
1:54:58ostrich
1:55:03choose to graze close to a giraffe
1:55:07standing watch.
1:55:12Those eyes and that neck are the best
1:55:15warning system in the region.
1:55:21A free safety net that needs no
1:55:24friendship,
1:55:28only a shared instinct to survive.
1:55:36Giraffes do not live in fixed herds the
1:55:39way buffalo do.
1:55:42They gather in loose groups called
1:55:45towers.
1:55:48forming and breaking up through the day,
1:55:54depending on food and on what each
1:55:57animal needs.
1:56:00A pair drifting off to feed alone is
1:56:03ordinary.
1:56:07Nothing unusual at all.
1:56:12But it is a rare opening for awaiting
1:56:16pride.
1:56:22Each hind leg ends in a sharp hoof,
1:56:28about 30 cm across.
1:56:33Driven from that height,
1:56:37one kick can finish a grown lion.
1:56:42Giraffes fight in a style called
1:56:45necking,
1:56:49using the whole neck and head as a
1:56:52weapon.
1:56:55Swinging blows heavy enough to put a
1:56:58rival down.
1:57:02The power behind those swings
1:57:08is not something to underestimate.
1:57:13A mature bold giraffe can weigh close to
1:57:17two tons.
1:57:22Against an animal like that,
1:57:26a lone lion has almost no chance.
1:57:34But in the hardest stretch of the dry
1:57:36season,
1:57:40with zebra and buffalo growing more
1:57:43alert by the day,
1:57:48a hungry pride has to weigh the biggest
1:57:52risk on its list of prey.
1:57:58A giraffe's first answer to danger
1:58:04is not to fight.
1:58:08With that stride,
1:58:11they can run at close to 50 kilometers
1:58:14per hour,
1:58:17fast enough to leave most land predators
1:58:21behind.
1:58:23The kick only comes out when there is
1:58:27nowhere left to run.
1:58:31Most of the time, giraffes are peaceful
1:58:34animals
1:58:36that avoid conflict.
1:58:39But with no way out,
1:58:42their defensive reflex becomes the most
1:58:45feared weapon
1:58:47on the survivor.
1:58:53>> [music]
1:59:01>> Heat. Heat.
1:59:20>> [music]
1:59:28>> The most dangerous prey of all three
1:59:32rounds.
1:59:34The only one that can drop a lion with a
1:59:37single kick finally goes down.
1:59:45The deadliest weapon on the planes
1:59:50still loses to a group that works
1:59:53together at the right moment.
1:59:57Lionesses opening the way with patience.
2:00:02a male closing it with force.
2:00:11Overhead, the first vultures have
2:00:14started to drop lower.
2:00:17Under the trees nearby, [laughter]
2:00:21the hyenas from the previous round have
2:00:23moved in closer.
2:00:29Still keeping their distance,
2:00:33still waiting for what is left.
2:00:38On the savannah, nothing is wasted.
2:00:43Every hunt feeds more than one species.
2:00:51More than half of all giraffe calves do
2:00:54not survive their first year.
2:00:59Most of them taken by prides exactly
2:01:02like this one.
2:01:05For the giraffe population, this is not
2:01:09an unusual loss.
2:01:12It is part of the balance between
2:01:14predator and prey.
2:01:19A successful giraffe hunt like this one
2:01:24rarely happens more than once in many
2:01:27months.
2:01:33For a pride living through the hardest
2:01:36season of the year,
2:01:40this is more than a meal.
2:01:44It is the margin that lets the whole
2:01:47pride
2:01:50from the lead female down to the
2:01:52smallest cub
2:01:55hold on for one more season.
2:02:05Three rounds.
2:02:09Three prey species. Three kicks. From
2:02:15the easiest prey to the deadliest
2:02:21round got harder,
2:02:25and the way the pride answered grew with
2:02:28it,
2:02:32three different answers,
2:02:36one shared lesson,
2:02:41Three rounds, one evening.
2:02:46All three played out on the same ground,
2:02:51sharing the same water,
2:02:55the same hard, dry season.
2:03:02Survival on the savannah is not decided
2:03:06by who is strongest.
2:03:11It is decided by who fights back the
2:03:14right way
2:03:18and by a pride that works together
2:03:23at the right moment to take the one
2:03:27opening it gets.
2:03:31The zebra kicked and got away.
2:03:36The buffalo kicked and still lost, but
2:03:40made the price far higher.
2:03:47The giraffe kicked and almost won.
2:03:53In all three rounds,
2:03:58not one victory came from the strength
2:04:01of a single animal.
2:04:04Every time it was the coordination of
2:04:08the whole pride,
2:04:12one closing in, one holding back, one
2:04:16finishing it
2:04:20that decided who lived and who had to
2:04:24keep running tomorrow.
2:04:30There is a saying we all know, a chain
2:04:33is only as strong as its weakest link.
2:04:39For a lion pride, the reverse is true as
2:04:43well.
2:04:46The pride is only strong when every
2:04:50member
2:04:52knows exactly what their role is
2:04:56and trusts the others to hold theirs.
2:05:02Not far from where the last fight ended,
2:05:08the Impala that watched the first round
2:05:11are still grazing as if nothing happened
2:05:14at all.
2:05:18The hyenas and vultures from the later
2:05:20rounds have moved on too.
2:05:24Full on what the hunts left behind.
2:05:30On the savannah, no moment belongs to
2:05:33one species alone.
2:05:39Everything gets shared one way or
2:05:42another.
2:05:48Elephants lead the way to water.
2:05:54Wilderbeast borrow the giraffe's eyes.
2:05:59Oxeckers and cattle egrets stand guard
2:06:03on the buffalo.
2:06:06Vultures and hyenas clear away what is
2:06:10left.
2:06:13The dry season will pass. When the first
2:06:17rains return, new grass will come up.
2:06:24The pools will fill again. And the
2:06:27distance between species on the savannah
2:06:32will widen as it does every year.
2:06:41But what this pride learned in this dry
2:06:43season
2:06:47about zebra, about buffalo, about
2:06:51giraffe will not wash away with the
2:06:54rain.
2:06:57They will pass it to the next generation
2:06:59of cubs
2:07:02through every hunt, through every dry
2:07:05season that follows.
2:07:09Looking back, the deadliest battle was
2:07:12never about the size of the prey
2:07:17or the teeth and claws of the hunter.
2:07:22It was the moment one side had to fight
2:07:24back
2:07:28and the other had to adapt on the spot
2:07:31or lose everything.
2:07:35That is the pattern that has repeated
2:07:37across millions of years on this
2:07:39savannah
2:07:42and it will keep repeating one dry
2:07:45season after another.
2:07:50Which kick in these three rounds
2:07:56do you think is the most dangerous to a
2:07:59lion? the zebra, the Cape Buffalo, or
2:08:03the giraffe?
2:08:07Leave your answer in the comments before
2:08:10we move on to New Wild Horizons.
2:08:21You are looking at a flag in West Africa
2:08:24with 11 red and white stripes and a blue
2:08:28square in the corner. But instead of 50
2:08:31stars, there is only one solitary star.
2:08:36This is not the United States. Yet this
2:08:40flag was stitched together
2:08:44by seven women who had just crossed the
2:08:47Atlantic Ocean to return to a continent
2:08:50they had never once set foot on. The
2:08:54capital of this country is named after
2:08:57James Monroe, the fifth president of the
2:09:01United States,
2:09:03a man who never granted them complete
2:09:06freedom. Their independence day is July
2:09:1026th,
2:09:12exactly 22 days later than America's 4th
2:09:16of July. And they declared their freedom
2:09:20in 1847,
2:09:23tough a century before the United States
2:09:26abolished slavery.
2:09:28This is Liberia, Africa's first
2:09:32republic. It is home to the rarest pygmy
2:09:36hippos on earth, boasts leftbreaking
2:09:40waves that National Geographic called
2:09:43Africa's surfing capital
2:09:47and is also home to the first woman
2:09:50elected to lead a nation on this
2:09:53continent.
2:09:54Listen to the call of franklins from the
2:09:57dense canopy. Smell the smoke rising
2:10:02from a charcoal stove hard at work
2:10:05distilling palm oil.
2:10:08Feel the morning mist rolling through a
2:10:12cathedral of giant trees [music]
2:10:15standing up to 200 ft tall, older than
2:10:19the United States itself.
2:10:22This is Liberia at dawn.
2:10:28The entire country spans about 43,000
2:10:32square miles,
2:10:34roughly the size of the state of
2:10:36Tennessee. It nestles along the Atlantic
2:10:39coast of West Africa, sandwiched between
2:10:42Sierra Leon, Guinea, and Ivory Coast.
2:10:46The coastline stretches 350 mi, slightly
2:10:51longer than the entire California coast.
2:10:54The jar is to nest.
2:10:57Left to nest.
2:11:01Wow.
2:11:03Surrounded by mangrove lagoons and
2:11:06sandbarss pushed up by six major rivers.
2:11:12Mount WV, the highest peak here, reaches
2:11:154,724
2:11:18ft, taller than most of the Appalachian
2:11:21mountains. And half of this country,
2:11:25yes, fully half of its land area
2:11:29remains completely covered by primary
2:11:33rainforest.
2:11:35This is the upper Ginian forest, one of
2:11:39only 25 precious biodiversity hotspots
2:11:45remaining on the entire planet. Liberia
2:11:49sits 300 mi north of the equator.
2:11:53Temperatures year round gently hover
2:11:56between 75 and 82° F. It is warmer than
2:12:02Miami and far more humid than New
2:12:05Orleans.
2:12:07Up to 200 in of rainfall pour over the
2:12:10capital of Monrovia each [music] year.
2:12:14four times the precipitation that the
2:12:17city of Seattle receives.
2:12:20Children grow up here without ever
2:12:23seeing snow except on television. There
2:12:26are two seasons here. A dry season
2:12:30running from November to April, a rainy
2:12:32season from May to October,
2:12:36and a curious little pause in between
2:12:39when the rains [music] politely take a
2:12:41back seat. Yet, the wildest weather here
2:12:44does not originate from the sky. It
2:12:47arrives from a desert 2,000 mi away.
2:12:51Every year, from November to February,
2:12:55the Hamatan winds sweep down from the
2:12:58Sahara Desert, carrying a fine red dust
2:13:01across West Africa.
2:13:03The sun turns a deep crimson glow like a
2:13:07nightlight. On highland nights,
2:13:10temperatures can dip down to 60°
2:13:13Fahrenheit.
2:13:15And on the shores of Robertsport,
2:13:18on certain summer nights, Clankton
2:13:22illuminate the waves with a stunning
2:13:25brilliant blue glow.
2:13:52Yet to truly understand this land, you
2:13:56must meet the 5 and a half million
2:13:59people who built it.
2:14:03The first thing you hear the moment you
2:14:06step off the plane will be the greeting
2:14:09powder body. This land is home to 16
2:14:14native ethnic groups. The Capill are the
2:14:18largest group making up about 20% of the
2:14:21population
2:14:23living mainly in the western highlands.
2:14:26The Basa live along the central coast.
2:14:30The Greo inhabit the southeast while the
2:14:34Geo and Mano reside further north. And
2:14:38then there is a population group
2:14:41accounting for a mere 5%
2:14:44yet changing everything. The Americians.
2:14:50They are descendants of roughly 15,000
2:14:53free Africanameans
2:14:55who crossed the Atlantic to return here
2:14:59starting in 1822.
2:15:02Despite representing just 5% of the
2:15:05population for 133 years, they were the
2:15:10ones who called the shots for the entire
2:15:13nation. That brings us right to
2:15:16Colloqua, a truly unique local English
2:15:20creole.
2:15:22English is the official language of
2:15:24Liberia thanks to those American
2:15:27settlers. But over more than two
2:15:30centuries, the English here has evolved
2:15:33into something entirely its own. How the
2:15:38body means how are you doing? And you
2:15:42reply with
2:15:44the body fine meaning I am doing well. U
2:15:50o a means that is right while small
2:15:56small means take your time. Truth be
2:16:00told
2:16:02is not difficult at all. As long as you
2:16:06know how to say how the body, you will
2:16:09do just fine here. When it comes to the
2:16:13people of Monrovia, their character is
2:16:16warm, open, and remarkably resilient.
2:16:21This nation has endured two internal
2:16:25conflicts,
2:16:27overcome the Ebola health crisis of
2:16:302014,
2:16:32yet still welcomes strangers
2:16:37with the brightest smile you will ever
2:16:39see. There is a wonderful basa proverb
2:16:44katuin sheshwum alone meaning we can
2:16:49only go far when we walk together. And
2:16:53that is Liberia wrapped up in a single
2:16:57sentence.
2:17:07Behind the modern tapestry lie threads
2:17:11of far older tradition with the Puro
2:17:14society for men and the Sunday society
2:17:18for women. These are centuries old
2:17:21secret societies where rights of passage
2:17:24are performed for young men and women.
2:17:28Young people venture deep into the
2:17:30forest for 1 to 3 years to learn custom
2:17:35ceremony survival skills and reverence.
2:17:40The masks carved by these societies,
2:17:43especially the Dan masks, eventually
2:17:46found their way to the Louvre and the
2:17:49Museum of Modern Art in New York. That
2:17:53is how global modernism was quietly
2:17:57influenced by a small Liberian village.
2:18:02Yet that flag with its lone star carries
2:18:06a story unlike any other. A tale of the
2:18:10most paradoxical flag on earth.
2:18:1511 red and white stripes and a single
2:18:18white star on a blue field was stitched
2:18:22in July of 1847
2:18:25by seven women led by Susanna Elizabeth
2:18:29Lewis. The horizontal stripes represent
2:18:33the 11 men who signed the Liberian
2:18:36Declaration of Independence.
2:18:39And that solitary star is Liberia
2:18:42itself, the first star of freedom to
2:18:46shine in the African sky. Right at the
2:18:50port of Monrovia on the Meserado River,
2:18:53lies Providence Island, spanning a mere
2:18:571.6 acres. [music]
2:18:59That is were 88 free African-Ameans
2:19:04disembarked from a ship on January 31st,
2:19:071822.
2:19:09After 44 days at sea from New York
2:19:12Harbor, 25 years later, they declared
2:19:16independence
2:19:18half a century before America abolished
2:19:21slavery.
2:19:23The United States refused to recognize
2:19:26Liberia until 1862
2:19:30because pro-slavery factions back then
2:19:34would never accept a free black nation.
2:19:38Meanwhile, the capital city of Monrovia
2:19:41was named for James Monroe, the fifth
2:19:44president of the United States, who was
2:19:47also a founding member of the society
2:19:51that funded that entire voyage. The
2:19:55beauty of Liberia is that you can live
2:19:58two completely different lives just a
2:20:013-hour drive apart. Start in Monrovia
2:20:05with its 1 and a half million residents
2:20:08wear rooftop bars in the [music] Sincor
2:20:11neighborhood.
2:20:13Catch the last golden light of dusk
2:20:16while sipping craft coffee alongside
2:20:19young members of the diaspora generation
2:20:23who returned from Providence to launch
2:20:26new ventures. Just down the hill is the
2:20:29wateride market, buzzing with the sounds
2:20:32of koka echoing through smoke from
2:20:36grilled plantains and dried fish. Over
2:20:40on Camp Johnson Road, Taylor shops,
2:20:43barber shops, and modest local eeries
2:20:47line the street where lunch costs a mere
2:20:50$2.
2:20:53At top the hill stands the Dukor Hotel.
2:20:57A five-star tower from the 1960s, left
2:21:01silent after past struggles, standing
2:21:04like a fractured crown, ejuding urban
2:21:07decay, yet offering the finest paranomic
2:21:11view in all of Monrovia.
2:21:15Now drive 3 hours west to Bowie County,
2:21:20where paved roads transition into dirt
2:21:23and then into rich red clay.
2:21:27Suddenly you feel as though you have
2:21:29stepped into another century. Round
2:21:32fetched huts with packed mud walls.
2:21:36Charcoal stove smoldering outside every
2:21:41home and women dressed in vibrant lap
2:21:45cloth pounding cassava leaves in wooden
2:21:49mortars. The aroma of palm butter soup
2:21:53drifts through the morning haze
2:21:56alongside fields of upland rice.
2:22:01An ancient African grain strain with a
2:22:053,500year
2:22:08history. On weekends, men climb palm
2:22:12trees at dawn to gather sap. And by
2:22:16evening, the whole village sits beneath
2:22:19the mango trees, sipping palm wine and
2:22:23shooting the breeze.
2:22:42This is Kinu,
2:22:45a small island set in the frigid Baltic
2:22:48Sea. A place where blizzards can blanket
2:22:52the entire island in white while
2:22:55remaining so barren it cannot yield
2:22:58enough food to sustain a mere 300 souls.
2:23:04Unable to rely on the barren earth
2:23:07beneath their feet, Kihoo's able-bodied
2:23:11men were forced to head out to sea to
2:23:14survive.
2:23:16They departed, leaving behind an island
2:23:19home only to women, children, and
2:23:23elders.
2:23:25Kiu women had to act as mothers while
2:23:28holding down the fort and shouldering
2:23:32all their husbands duties. Throughout
2:23:35those long months of separation,
2:23:39that extraordinary resilience gave birth
2:23:43to Europe's last matriarchal society,
2:23:48recognized by UNESCO as a world heritage
2:23:52site.
2:23:54Media outlets around the world still
2:23:57call this place the island of women.
2:24:02Even so, the people of Kihu have
2:24:05repeatedly rejected that description.
2:24:09So, what is the truth? What is life
2:24:13really like here?
2:24:16The answer just might surprise you.
2:24:21Kihu rests quietly in the Gulf of Ria
2:24:25off the western coast of Estonia.
2:24:29From the nearest point on the mainland,
2:24:32the sea distance is just over 10
2:24:35kilometers.
2:24:36While from the city of Peru, the
2:24:39distance is around 41 km.
2:24:44Yet the instant the ferry pulls away
2:24:46from port, the rhythm of the modern
2:24:49world begins to fade. For ahead lies an
2:24:53island spanning just over 16 square
2:24:57kilometers that has stood apart from the
2:25:00hustle and bustle of the world for
2:25:03hundreds of years.
2:25:05Surrounding Kenu are Mijia Island and
2:25:09more than 50 uninhabited eyelets. Seen
2:25:13from above, the entire archipelago
2:25:16resembles pebbles gently scattered by
2:25:19nature's hand across the deep blue sea.
2:25:28He knew boasts over 36 km of coastline
2:25:33embracing sandy beaches, pine forests,
2:25:37and small villages.
2:25:40The waters around Kinu are fairly
2:25:43shallow with countless hidden reefs
2:25:46beneath the surface, forcing sailors to
2:25:49approach the island with great care
2:25:53since ancient times.
2:25:55Scattered across the island are giant
2:25:58boulders like remnants left [music]
2:26:01behind from the ice age. The people of
2:26:05Kenu once cried these stones [music]
2:26:08to construct breakwaters for the city of
2:26:11Peru, pave streets in Tolen, and even
2:26:15ship them all the way to Ria. The
2:26:19terrain here is surprisingly simple, as
2:26:22the entire island resembles a thin
2:26:25ribbon of silk draped across the sea,
2:26:29with its highest point reaching under 9
2:26:32m above sea level.
2:26:36So low that on foggy mornings, the
2:26:39boundary between land, sea, [music] and
2:26:42sky seems to merge as one.
2:26:46Life on the island centers around four
2:26:50small villages.
2:26:52Limy serves as the island's gateway to
2:26:56the sea, home to its busiest port.
2:27:00Lakula acts as the heart of the
2:27:03community with its school, medical
2:27:06center, church, and museum.
2:27:10In Sere to the north, a post office,
2:27:14shops, and community spaces fulfill
2:27:18daily necessities.
2:27:20Further south lies roots a cooler where
2:27:24a lighthouse quietly guards the Baltic
2:27:26Sea day and night. At first glance,
2:27:30Kitmu's peaceful beauty can easily
2:27:34mislead firsttime visitors. But on an
2:27:37island without tall mountains or terrain
2:27:41large enough to offer shelter, people
2:27:44must endure nearly the full force of
2:27:47every storm rolling in from the Baltic
2:27:49Sea. Winter is when nature reveals its
2:27:53harshest face.
2:27:55Snow buries the fields. Chilly winds
2:28:00howl past rooftops.
2:28:03and the waters surrounding the island
2:28:06can freeze over into a vast white sheet
2:28:10stretching to the horizon.
2:28:12When fairies are forced to grind to a
2:28:15halt, residents can only rely on flights
2:28:19or wait until the ice becomes safe
2:28:21enough to drive directly across the
2:28:25frozen sea. Yet, even when the ice
2:28:28melts, life on the island gets no
2:28:32easier. Poor soil and limited resources
2:28:36once made self-sufficiency impossible
2:28:39for Kenu.
2:28:41At times,
2:28:43half of all food and hay had to be
2:28:46brought in from outside to sustain both
2:28:50human and animal life.
2:28:53It was that very scarcity that drove the
2:28:56men out to sea, where they spent days
2:28:59searching for a livelihood.
2:29:02Even the homes
2:29:04bear the mark of this struggle against
2:29:08nature. For instead of being built near
2:29:11the shore with windows facing the ocean,
2:29:15houses were constructed deeper inland,
2:29:19sheltered behind belts of pine trees.
2:29:23For the people of Kinu,
2:29:26the sea was both a lifeline, nourishing
2:29:30the entire community and an everpresent
2:29:34challenge that they had to learn to live
2:29:38alongside.
2:29:40Yet, this harsh land possesses a
2:29:43captivating beauty that is hard to look
2:29:47away from.
2:29:49As winter passes, fields gradually
2:29:52become carpeted in green grass and wild
2:29:56flowers.
2:29:58Pine forests stretched toward the
2:30:01coastline and glinced through that sea
2:30:04of green are wooden houses painted
2:30:08vibrant red and yellow like lively brush
2:30:12strokes.
2:30:14Across a rustic canvas, following the
2:30:17narrow path south, a white lighthouse
2:30:21standing 29 m tall rises proudly at
2:30:26Pitkana Point. Few know that it was cast
2:30:30in iron in England in 1864,
2:30:35then dismantled piece by piece, shipped
2:30:39by sea,
2:30:41and assembled directly on the island.
2:30:45Throughout the 19th century, this was
2:30:48the island's sole means of navigation
2:30:52and connection to the mainland before
2:30:55underwater telephone cables were
2:30:57installed.
2:30:59Today, after over a century exposed to
2:31:03Baltic tempests, the lighthouse retains
2:31:07its original form, becoming a symbol of
2:31:11iron resolve for the women on this
2:31:15windswept island
2:31:19that have learned to adapt to this harsh
2:31:22land.
2:31:24[music] Right on the barren windswept
2:31:27dunes where the salty air of the Baltic
2:31:31Sea can drain the vitality of almost any
2:31:36plant species.
2:31:38The rare sea holly still manages [music]
2:31:42to survive. Their roots dig deep into
2:31:47gravel and stone quietly blooming like
2:31:52proud treasures
2:31:55listed in the red data book.
2:31:59Further inland, barren pastures are home
2:32:03to the native Kihanu sheep, living
2:32:07witnesses to history
2:32:11that have weathered the storm through
2:32:14over three millennia of cold.
2:32:18In return for that resilience, their
2:32:20thick fleece provides warmth and raw
2:32:24material for Kihanu women to weave
2:32:29traditional red striped skirts by the
2:32:32hearth in winter.
2:32:35Life carries on as herds of shaggy
2:32:39Scottish Highland cattle appear along
2:32:42the beaches. They move slowly in the
2:32:45cold, but that very ruggedness turns
2:32:48them into diligent gardeners, clearing
2:32:52reed beds [music]
2:32:53to make way.
2:32:55For thousands of migratory birds,
2:32:58returning to nest each spring, [music]
2:33:02and along the delicate boundary between
2:33:05land and ocean, gray seals appear like
2:33:09sacred witnesses to the island's
2:33:11history. Since the 19th century, they
2:33:15were a vital lifeline,
2:33:17part of a grueling livelihood that
2:33:20forced key new men to brave the ice
2:33:24across the frozen sea surface. They
2:33:28spent months drifting among cracked ice
2:33:31flows to hunt seals and bring precious
2:33:34resources home to their families.
2:33:49>> [music]
2:33:50>> It functions as a natural refrigerator,
2:33:52keeping food fresh for months on end. A
2:33:56tiny animal, yet one that [music]
2:33:58carries the cleverness and grit of a
2:34:00much larger survivor across the frozen
2:34:03polar wastess.
2:34:09While the Arctic [music] turn tries to
2:34:11dodge the fox's claws on the ground,
2:34:14another menace appears from above.
2:34:21The Arctic ska nicknamed the pirate of
2:34:24the Arctic sky.
2:34:27Rather than diving for their own fish,
2:34:36they rely on flight speeds [music] of up
2:34:38to 50 km hour to ambush Arctic turns in
2:34:43midair.
2:34:49Under the pressure of aerial collisions,
2:34:52the Arctic turn is forced to drop its
2:34:54fresh catch simply to regain balance.
2:34:57They obtain as much as 95% of their
2:35:00protein during breeding season [music]
2:35:02through these acts of airborne piracy.
2:35:07This is a textbook example of ecological
2:35:10niche differentiation in which a species
2:35:12chooses to invest effort in pursuit
2:35:15rather than inactive hunting. The Arctic
2:35:19Skuwa embodies nature's unsparing
2:35:21adaptability.
2:35:23Here, strength and cunning can sometimes
2:35:26yield a greater payoff than diligence
2:35:29alone.
2:35:31[laughter]
2:36:06>> [music]
2:36:12>> caught up in tracing [music] Africa's
2:36:14coastline on its way back to the poles.
2:36:17The Arctic turn unwittingly overlooked a
2:36:20grand survival drama inland, a land of
2:36:23vivid and merciless contrasts, where the
2:36:27equatorial [music] sun gives life yet
2:36:29scorches every drop of water.
2:36:38At the heart of these dry basins,
2:36:40[music]
2:36:40salt pans stretch across thousands of
2:36:43square miles like mirrors reflecting
2:36:45sheer severity.
2:36:52Seline lakes such as Natron can register
2:36:55a pH of 10.5, [music]
2:36:58a costic setting that is deeply hostile
2:37:01to most living things.
2:37:04[music]
2:37:23Ground temperatures in the dry season
2:37:25routinely exceed 50° C, turning the air
2:37:29into shimmering heat. Even so, the
2:37:33African savannah remains the stage
2:37:35[music] for one of the planet's largest
2:37:37survival races.
2:37:46Burchil's zebra heads up that race.
2:37:50Within the unulate world, this species
2:37:52holds an epic distinction. The longest
2:37:55straight line migration recorded in
2:37:58Africa. A round trip of more than 1,000
2:38:01kilometers linking the Okavango Delta
2:38:04and the Magadigadi salt pans.
2:38:12Why leave the lush green pastures for a
2:38:15barren desert? The answer sits [music]
2:38:18in the mineral hunger felt by pregnant
2:38:21or nursing mothers. Although the
2:38:24northern plains stay green,
2:38:30the vegetation there remains low in
2:38:32phosphorus and calcium concentrations.
2:38:36Zebras kick off their migration at an
2:38:38average pace of around 20 km per day
2:38:41[music] to reach the salt basins.
2:38:48At Magadic Gadi, sparse rainfall
2:38:51triggers the growth of salt grass whose
2:38:54mineral content far surpasses [music]
2:38:56that of ordinary grasses. It is the
2:39:00essential nutrient stock for shaping
2:39:02strong skeletal frames in foss and
2:39:05enriching milk quality for mares.
2:39:10Their
2:39:14movement is a feat of navigation and
2:39:16collective memory. Drawing on sharp
2:39:18alactory receptors, zebras can detect
2:39:22humidity on the wind from dozens of
2:39:24miles away.
2:39:29Their digestive system is equipped to
2:39:31process the toughest, driest grasses
2:39:34through hing gut fermentation.
2:39:36The mechanism lets them consume large
2:39:39volumes of low nutrient forage while
2:39:42compensating with quick processing
2:39:44speedy
2:39:52[music]
2:39:59[music]
2:40:05roar. or stamina. Their black and white
2:40:08coats work as a motion dazzle barcode.
2:40:12As thousands run in formation across the
2:40:15shimmering salt pans, the [music]
2:40:17interlocked stripes produce a visual
2:40:19puzzle. That effect scrambles the depth
2:40:22perception and targeting ability of
2:40:24[music] hunters like lions or leopards,
2:40:27making it hard to lock onto a single
2:40:29animal.
2:40:31That is how they endure in a land few
2:40:34migratory species dare to cross.
2:40:38Yet on the unforgiving route to the salt
2:40:40pans, zebras [music] do not move alone.
2:40:44When thirst begins to consume their
2:40:46hope, they must rely on a gigantic ally.
2:40:50Weighing in at up to 6 tons, the African
2:40:54bush elephant is the largest land animal
2:40:57on the planet.
2:41:05>> [music]
2:41:05>> Its power sits not only in muscle but in
2:41:08a trunk containing more than 40,000
2:41:11flexible muscle bundles.
2:41:14Moreover, elephants hold extraordinary
2:41:17spatial memory, letting them relocate
2:41:19underground water sources forgotten for
2:41:22decades when rivers are reduced to
2:41:25sunbleleached strips of sand.
2:41:32Elephants use their pillar-like legs and
2:41:35powerful trunks to excavate [music] deep
2:41:37holes in the earth. They can pick up
2:41:40subterranean moisture thanks to
2:41:43vibration receptors in [music] their
2:41:44feet and trunks.
2:41:47Once the matriarch and her family have
2:41:49drunk their fill,
2:41:51as much as 200 L each per day, they move
2:41:55on. Only then do the zebras come in to
2:41:58use whatever water remains in the deep
2:42:00holes the elephants have dug. [music]
2:42:03Without the indirect assistance of these
2:42:06giants, zebras would struggle to cover
2:42:08500 [music] km of desert without
2:42:11collapsing from dehydration.
2:42:23Elephants [music] also possess an
2:42:25infrasound communication system
2:42:26alongside their waterfinding talent. Low
2:42:30frequency sounds below 20 hertz can
2:42:33carry through the ground for up to 10
2:42:36km. [music]
2:42:37That reach helps herds stay in contact
2:42:40and coordinate movements smoothly
2:42:43between distant oases. [music]
2:42:48The shadow of the giants also serves as
2:42:51a shield protecting zebras from glowing
2:42:54eyes deep [music] in the night. For when
2:42:57dusk fades over the Kalahari desert,
2:43:00[music] a different and brutal hunting
2:43:02order begins to rise. The spotted hyena.
2:43:08Far from the cowardly scavenger popular
2:43:11prejudice, this is a hunter with one of
2:43:13the highest success rates [music] on the
2:43:16African savannah.
2:43:21They can keep a pace of 60 km hour
2:43:24across 5 km without tiring. The hyena's
2:43:28heart is oversized, making up 1% of its
2:43:32body weight, pushing oxygen fast enough
2:43:34to sustain long endurance chases.
2:43:45For that reason, shadowing elephant
2:43:47herds serves zebras as both a route to
2:43:50water and a way to borrow the authority
2:43:52of the giant gods. Hyenas, fierce as
2:43:57they are, tend to proceed cautiously and
2:44:01avoid areas occupied by adult elephants.
2:44:06Spotted hyenas operate within a rigid
2:44:09matriarchal social order where females
2:44:12outsize males and carry higher androgen
2:44:15levels.
2:44:19[screaming]
2:44:28Every member of the clan follows the
2:44:30lead of a commanding alpha female,
2:44:33forming a disciplined hunting network.
2:44:36They communicate through more than 10
2:44:38distinct calls, including the famous
2:44:41laugh.
2:44:42That vocalization is, in fact, an alarm
2:44:46signal, signaling stress or food
2:44:48competition.
2:44:50The spotted hyena acts as nature's
2:44:52unsparing filter, taking out weak
2:44:55animals to keep the migrants bloodline
2:44:58strong. They hold the harsh balance
2:45:01between life and death on the salt pans.
2:45:27As the hyena's shadow retreats into the
2:45:30dark, the mounds on the Makadik Gadi
2:45:32salt pans begin to stir. for the new
2:45:35dawn. And on those mounds, the Mircat
2:45:39takes up its role as a tireless
2:45:41sentinel.
2:45:50[music]
2:45:56[music]
2:46:01Wow.
2:46:03[music]
2:46:08[music]
2:46:15[music]
2:46:19The dark circles around their eyes
2:46:21operate as [music] built-in anti-glare
2:46:24sunglasses, letting them stare straight
2:46:26into the sky to scan for danger. They
2:46:30carry an exceptionally detailed warning
2:46:32vocabulary [music] of more than 30
2:46:35distinct calls. They can accurately sort
2:46:38ground threats [music] such as wild dogs
2:46:41from aerial threats such as the Marshall
2:46:43Eagle.
2:46:51[music]
2:47:10Once a Mircat sounds the alarm, that
2:47:14particular call frequency instantly
2:47:16engages the zebra herd's self-defense
2:47:19response.
2:47:21With their sharp hearing, zebras swiftly
2:47:24close into a defensive [music] group or
2:47:26withdraw. In return, zebras can scatter
2:47:30smaller predators or stir the soil to
2:47:34expose insects for the mircats.
2:47:39A mircat strength also rests on total
2:47:42unity within clans that can number up to
2:47:4450 individuals. Each one stands ready
2:47:48[music] to forego foraging to serve as a
2:47:50sentry, ensuring the entire community's
2:47:53safety.
2:47:55Their
2:48:07stomachs cannot [music] store fat,
2:48:10forcing constant hunting to fuel a
2:48:12breakneck metabolism. Even more
2:48:15remarkably, mircats can shrug off many
2:48:18types of scorpion and snake [music]
2:48:20venoms thanks to mutations in their
2:48:23nicotinic acetylcholine receptors.
2:48:27The unseen coordination between zebras
2:48:30and mircats showcases the wisdom of the
2:48:33macadi [music] ecosystem.
2:48:39A place where a minute creature can
2:48:42become the [music] eyes for giants and
2:48:44life finds protection through the most
2:48:46unexpected partnerships.
2:48:48Yet not [music] every animal requires
2:48:51partners to endure. Rather than trailing
2:48:54elephants for water in the zebras
2:48:56[music] fashion, the GMSbach has been
2:48:58shaped into a permanent occupant of the
2:49:01arid lands.
2:49:09To outlast days [music] when ground
2:49:11temperatures climb past 50° C, they
2:49:15depend on a blood vessel network called
2:49:18the corroted ret.
2:49:21Hot blood arriving from the body is
2:49:23cooled by air in the nasal cavity before
2:49:26entering the brain. This allows their
2:49:29core temperature to reach 45° C without
2:49:33inflicting neurological harm.
2:49:41They can last for weeks and at times
2:49:44months without taking a single sip of
2:49:46water. They extract moisture from
2:49:49tubers, roots, and wild melons buried
2:49:53deep beneath the desert sand.
2:50:01They possess the ability to concentrate
2:50:03urine to the maximum and draw every bit
2:50:06of moisture back from their feces to
2:50:09block water loss through excretion.
2:50:12When humidity climbs at night, desert
2:50:14plants take on moisture. The GMS selects
2:50:18this window to graze, harvesting that
2:50:21precious extra water.
2:50:24The GMS's presence sounds like a deep
2:50:27bass note underscoring the cost of
2:50:29freedom in a setting without mercy.
2:50:32Here, the winner is not the swiftest
2:50:34runner, but the one that turns scarcity
2:50:37into an absolute survival edge
2:50:50as the southern salt pans fall into
2:50:52quiet. Another enormous pulse begins to
2:50:55shake the Serengeti.
2:50:59The great migration, [music] an unending
2:51:03survival cycle stretched across 30,000
2:51:06kilm between Tanzania and Kenya.
2:51:14Leading the Serengeti's vast pulse is
2:51:17the wilderbeast. Despite their somewhat
2:51:19awkward frame, Wilderbeast are true
2:51:22endurance [music]
2:51:23athletes capable of holding 80 km per
2:51:26hour.
2:51:28With an overwhelming force of 1.5
2:51:31million individuals, they form a single
2:51:34biological organism, a massive pulse of
2:51:37life flowing across the savannah.
2:51:41Their 800 km circular odyssey is a
2:51:45search for phosphorus and nitrogen
2:51:48concentrations.
2:51:50By consuming over 5,000 tons of grass
2:51:53each day, they keep shrub encroachment
2:51:56in check and stimulate the rise of
2:51:59nitrogenrich new pastures. [music]
2:52:02Their digestive tracts function as
2:52:05rolling fertilizer plants, spreading
2:52:08millions of tons of organic nutrients
2:52:11back across the soil.
2:52:14The wilderbeast's migratory pattern
2:52:16leans on a distinctive ability, storm
2:52:19sensors.
2:52:21They can detect infrasound from thunder
2:52:23and the scent of rain moisture from more
2:52:25than 50 km away.
2:52:30Each animal relies on collective
2:52:33intelligence to make decisions capable
2:52:35of overcoming harsh obstacles.
2:52:40During the birthing season, a remarkable
2:52:42biological phenomenon takes place.
2:52:46[music] More than 500,000 calves arrive
2:52:50within just 2 to 3 weeks.
2:52:54This synchronized birthing strategy
2:52:57helps maximize the survival rate in the
2:52:59face of surrounding predators. [music]
2:53:02A wilderbeast calf can stand solidly and
2:53:05keep pace with the herd only 7 minutes
2:53:08after being born. That ranks among the
2:53:12fastest developmental rates anywhere in
2:53:15the animal kingdom.
2:53:17The wilderbeast tide [music] likewise
2:53:19sustains a food chain for thousands of
2:53:22other species from lions and leopards to
2:53:25the vultures that circle overhead.
2:53:33Even when they fall in the Mara River,
2:53:36their remains feed the aquatic ecosystem
2:53:43with vast protein for months afterward.
2:53:46Through their migration, they keep the
2:53:48breath of the savannah from ever going
2:53:50still.
2:53:56Marching alongside the wilderbeast are
2:53:58more than 200,000 plain zebras.
2:54:04They serve as the vanguard of the
2:54:06Serengeti expedition.
2:54:11They possess a rugged build with a
2:54:13single hoof configuration and extremely
2:54:16strong in sizes for handling the
2:54:19coarsest forage.
2:54:23Unlike ruminants, zebras belong to the
2:54:26hingut fermenttor group. They can break
2:54:29down food 30% faster than antelopes.
2:54:33They take in large quantities of
2:54:35lowquality grass and [music] extract
2:54:37energy from it at high speed.
2:54:42In the symphony of the great migration,
2:54:45zebras play the role of pioneer
2:54:48lawnmowers,
2:54:52opening the way for the entire system
2:54:54[music] that trails behind them.
2:55:01>> [music]
2:55:04>> They travel days, sometimes weeks, ahead
2:55:07of the wilderbeast herd.
2:55:11Their job is to work through the top
2:55:14layer of tall grasses, old, fibrous, and
2:55:17heavy [music] with roughage.
2:55:21By stripping off that tough outer layer,
2:55:24zebras reveal the young soft stems and
2:55:27leaves beneath, rich in protein and
2:55:30minerals.
2:55:33The zebra's visual system is also a
2:55:36major asset to the safety of the entire
2:55:38migratory army.
2:55:42With eyes set on the sides of the head,
2:55:45they enjoy a nearly 360°
2:55:48field of view.
2:55:50Highly tuned to spotting unusual
2:55:53movement in the brush, they are the most
2:55:55effective early warning system in the
2:55:58herd.
2:56:04The lion ranks among the most dangerous
2:56:06of those threats. It is the only member
2:56:09of the cat family to maintain a complex
2:56:12social life built around hunting large
2:56:15prey. A mature male lion can weigh up to
2:56:19250 kg.
2:56:22Its robust skeletal frame and muscle
2:56:24mass make up 60% of its body weight.
2:56:28When 1.5 million wilderbeast flood their
2:56:31territory, lions shift into an extreme
2:56:34energy harvesting mode to feed their
2:56:37cubs.
2:56:38Lion hunting success [music]
2:56:40surges from 15% to over 30% during the
2:56:45peak of the migration.
2:56:47Lionesses with lean bodies and explosive
2:56:50speeds of 80 km per hour take on the
2:56:53role of chasing and driving prey into
2:56:56ambush pockets. Adult males powered by
2:57:00brute strength move in for the final
2:57:02step, drawing on their sheer weight to
2:57:05subdue prey quickly and bring the
2:57:08encounter to a decisive close. By
2:57:11focusing on old, sick or slow animals,
2:57:15they carry out a strict natural
2:57:18selection. The process keeps disease
2:57:20from spreading through a crowd of
2:57:22millions and ensures that only the
2:57:24healthiest genes pass to the next
2:57:26generation.
2:57:34Climate change, however, is nudging the
2:57:37timing of the migration, squeezing lion
2:57:41survival as food sources grow
2:57:43unpredictable.
2:57:51Lion numbers have fallen by 43% over the
2:57:55past two decades, leaving their role in
2:57:57ecosystem control more fragile than
2:58:00ever.
2:58:08Yet the greatest test the migrants face
2:58:11lies beneath the muddy waters of the
2:58:13Mara River.
2:58:15One of the world's largest and most
2:58:18fearsome reptiles. A predator that has
2:58:21persisted nearly unchanged for the last
2:58:2465 million years.
2:58:31Stretching up to 5 m and exceeding 700
2:58:35kg, they are ambush hunting machines in
2:58:38their purest form.
2:58:41Their armored hide carries pressure
2:58:43receptors capable of picking up the
2:58:45faintest vibrations from prey moving
2:58:47[music] through the water.
2:58:55The Nile crocodile is a master of
2:58:57patience. It can remain submerged for up
2:59:00to 2 hours while waiting for prey. It
2:59:03can go a full year without a meal, yet
2:59:06take [music] in food equal to half its
2:59:08body weight in just a few migration
2:59:11days.
2:59:13The weakest or [music] slowest migrants
2:59:16tend to be targeted in the water where
2:59:18the crocodile falls back [music] on its
2:59:20signature rotational technique.
2:59:24That powerful maneuver allows the
2:59:27predator to efficiently process a catch
2:59:29using the torque of its entire body to
2:59:32its advantage.
2:59:41Nile crocodiles are the imposing
2:59:44gatekeepers of the blue corridors
2:59:46flowing through the savannah.
2:59:49Their presence turns every river
2:59:51crossing into a purification right in
2:59:54which only the strongest and most
2:59:56fortunate earn the right to step onto
2:59:59the far bank.
3:00:07Once the harsh culling by crocodiles and
3:00:10lions ends, the remnants of life are not
3:00:13left to waste beneath the blazing sun.
3:00:16The whitebacked vulture, the Serengeti's
3:00:19diligent sanitation crew.
3:00:25They boast a wingspan of up to 2.2 m. It
3:00:29is the ideal build for riding thermal
3:00:31columns and gliding for hours with
3:00:34barely any energy spent.
3:00:38Their specialized traits help them stay
3:00:41clean while efficiently scavenging,
3:00:44ensuring that no essential nutrients are
3:00:46wasted in the savannah's life cycle.
3:00:51Remarkably, the whitebacked vulture
3:00:53stomach runs at an acidity of roughly
3:00:56pH1, more aggressive than car battery
3:00:59acid.
3:01:01Their
3:01:02intensely acidic stomachs let them
3:01:05neutralize even the most dangerous
3:01:07pathogens and bacteria lurking in
3:01:10carcasses without harm.
3:01:14[screaming]
3:01:15Within the great migration, vultures
3:01:17serve as biological waste processing
3:01:21centers
3:01:23operating at peak capacity. Their
3:01:26presence prevents disease outbreaks from
3:01:28carrying spreading into water and air,
3:01:30safeguarding the health of the entire
3:01:33migratory herd.
3:01:59Greatness in a voyage is not [music]
3:02:01measured only by thundering hooves or
3:02:04wingspans that blot out the sun. It is
3:02:07also [music] the microscopic realm where
3:02:09tiny creatures carry out migrations of
3:02:12astonishing tenacity.
3:02:18The monarch butterfly may be the most
3:02:21[music] iconic face of those journeys.
3:02:24An animal weighing less than a gram, yet
3:02:26carrying the genetic blueprint [music]
3:02:28of a transcontinental voyager.
3:02:35They hold a sophisticated navigation
3:02:38toolkit [music]
3:02:38using a sun compass paired with a
3:02:41biological clock housed in their
3:02:44antenna, calibrating flight direction to
3:02:47the changing [music] angle of sunlight.
3:02:54>> [music]
3:02:57>> The monarch butterflies migration is a
3:03:00procession of more than 4,800 [music]
3:03:02km from southern Canada and the US to
3:03:06the OAL fur [music] forests perched on
3:03:09Mexican volcanoes.
3:03:14The greatest wonder [music] is the
3:03:16arrival of a special generation named by
3:03:19scientists the Methusela generation.
3:03:24While ordinary butterfly [music]
3:03:25generations live for only 2 to 6 weeks,
3:03:29Methusela butterflies can last up to 8
3:03:31months, eight times the norm.
3:03:37By delaying reproductive diapors,
3:03:39[music]
3:03:40they channel every reserve into building
3:03:42lipid stores for the transcontinental
3:03:45flight.
3:03:48Yet even in the oamel forests, the calm
3:03:52of millions of butterfly wings offers no
3:03:56[music] unbreakable shield.
3:03:59The monarch butterflyy's body
3:04:01accumulates high concentrations of
3:04:04cardonoli glycoides [music]
3:04:08acquired from milkweed is a deterrent
3:04:11that disrupts the [music] heart function
3:04:13of many vertebrate predators.
3:04:19The blackheaded grows beak, [music]
3:04:21however, tolerates cardinalides at
3:04:23levels hundreds of times higher than
3:04:26other birds of comparable size. [music]
3:04:32Rather than eating the whole insect,
3:04:34[music] they deafly use their
3:04:36specialized beaks to target the
3:04:38lipidrich abdomen.
3:04:40[music]
3:04:43carefully steering clear of the
3:04:45butterflyy's most toxic parts.
3:04:53Leaving OAL [music]
3:04:55behind, we arrive at a remote island, a
3:04:58drift in the Indian Ocean.
3:05:01[music]
3:05:03When the first rains of the wet season
3:05:05fall, a biological trigger fires at the
3:05:08same instant [music] inside the bodies
3:05:10of over 50 million Christmas Island red
3:05:13crabs.
3:05:15[music]
3:05:19The entire 135 [music] km island appears
3:05:24blanketed by a moving red carpet.
3:05:29A cascading [music] crustation wave
3:05:31spilling over roads and cliffs. The sole
3:05:35aim [music] of this expedition is the
3:05:37reproductive cycle. Males excavate
3:05:40burrows along the shore to mate.
3:05:49Females wait for the right tidal phase
3:05:51to [music] release eggs. At high tide
3:05:53under a waning moon, each female casts
3:05:56[music] roughly 100,000 eggs into the
3:05:59sea,
3:06:03producing an enormous biological cloud
3:06:06just beneath the salty surface.
3:06:10After a month of development in the open
3:06:12ocean, crablets the size of match heads
3:06:14begin the return trip. They crawl from
3:06:17the waves back to the green forest to
3:06:19carry on the endless loop.
3:06:27The red crab migration is the breathing
3:06:30rhythm of an entire island ecosystem,
3:06:34cycling nutrients between forest and
3:06:36sea.
3:06:44That red carpet is a testament to the
3:06:46unquenchable drive to propagate a
3:06:49species. An epic written by claws and
3:06:52calcium shells across [music] damp
3:06:54ground.
3:07:19the yellow crazy ant. When migrating
3:07:22crab columns pass through [music] their
3:07:24territory, these ants spray concentrated
3:07:28formic acid onto the crab's most
3:07:30vulnerable points. The acid quickly
3:07:33overwhelms the crab's [music] sensory
3:07:35systems, leaving them disoriented and
3:07:38unable to move.
3:07:43Super colonies with densities of
3:07:45thousands of ants per square meter have
3:07:48driven the loss of more than 15 million
3:07:50crabs and thrown the island's ecological
3:07:53balance out of sync.
3:07:57The decline of this engineer crab
3:08:00species has set off a chain reaction
3:08:03crisis.
3:08:04Forest structure shifts. Seedlings are
3:08:08smothered by leaf litter that is no
3:08:10longer being cleared away. It is a stark
3:08:13reminder of how fragile isolated
3:08:16ecosystems can be when invasive species
3:08:19arrive.
3:08:22[music]
3:08:27>> [music]
3:08:32[music]
3:08:34>> Beneath the deep blue water at the
3:08:36island's edge, the crab eggs just
3:08:38released from their mother's care
3:08:40suddenly become a banquet for the
3:08:42planet's largest fish, the whale shark.
3:08:46These animals can reach [music] 12 m in
3:08:48length and weigh more than 20 tons.
3:08:52Although classed as sharks, [music] they
3:08:54hunt through a sophisticated filtering
3:08:57system that includes more than 20 filter
3:08:59pads [music] inside an enormous oral
3:09:02cavity. They perform active suction
3:09:05feeding, expanding their mouths up to
3:09:081.5 m [music] wide to swallow thousands
3:09:12of lers of water per minute.
3:09:14The filter system traps proteinrich
3:09:17fatladen crab larae while excess
3:09:20seawater flows out through the gill
3:09:22[music] slits.
3:09:24The synchronization between the red
3:09:26crab's reproductive cycle and the whale
3:09:28sharks migratory [music]
3:09:30path is a testament to the intimate link
3:09:33between land and ocean.
3:09:35Thanks to the abundant energy drawn from
3:09:38this sea of lavi, they can build up
3:09:41enough fat reserves to continue their
3:09:44trans oceanic voyage spanning thousands
3:09:47of kilome.
3:09:51We have journeyed through the most
3:09:53unsparing cross-sections of
3:09:57which animal in today's episode has
3:09:59changed the way you see the wild world.
3:10:02Was it or? Share your response in the
3:10:06comments. Your understanding is the
3:10:08greatest tribute these wild creatures
3:10:10[music] can receive.
3:10:13Do not forget to like and subscribe to
3:10:15accompany us on future expeditions where
3:10:18we will continue decoding the most
3:10:20mysterious survival codes in the natural
3:10:22world. And if you wish to discover more
3:10:25about other wild animals, continue with
3:10:27Win or Die full episode. Chapter's
3:10:31deadliest battles for survival or lion
3:10:33attack. The mapog battle for survival.
3:10:44Cheaters begin to achieve consistent
3:10:46competence and complete independence at
3:10:4918 to 24 months of age. The gap between
3:10:52the first attempt and independence spans
3:10:559 to 12 months of repeated observation,
3:10:59repeated [music] setbacks and
3:11:01improvements every small step.
3:11:18nine weeks of walking alone in the
3:11:20wilderness.
3:11:21This lioness's struggle is far more than
3:11:24a mere test of patience.
3:11:36It is a fierce race against time where
3:11:39energy is the currency that determines
3:11:41survival. [music]
3:11:52In her solitude, every hunting day is a
3:11:55gamble where the deck is stacked against
3:11:57her.
3:12:00Every missed strike means another day
3:12:02with an empty stomach, pulling her body
3:12:05deeper into a downward [music] spiral of
3:12:07exhaustion.
3:12:14Subira [music] is visibly losing weight.
3:12:20The energy spent [music] nursing her
3:12:22cubs and walking weary miles has
3:12:24completely overwhelmed the meager
3:12:26protein [music] she manages to secure.
3:12:30Her body is pushed to its absolute
3:12:33limit.
3:12:37The loss of her two [music] cubs was no
3:12:40random misfortune.
3:12:45In an unforgiving natural world, it is
3:12:48[music] the grim, predictable price for
3:12:50a solitary mother walking without a
3:12:52pride.
3:12:56The 15 km journey back to pride
3:12:59territory does not follow a straight
3:13:02line.
3:13:05Pace is set by 9week old cubs, strong
3:13:08enough to move, but not yet at adult
3:13:11lioness speed.
3:13:19Each observation stop is [music] an
3:13:21investment of time to reduce the
3:13:24probability of an unexpected encounter.
3:13:26[music]
3:13:31Under subira's current [music]
3:13:33conditions,
3:13:35cortisol elevated after prolonged
3:13:37stress, condition declining, [music]
3:13:40cubs moving slowly.
3:13:42Reducing the probability of unexpected
3:13:45threats takes priority over travel
3:13:48speed.
3:13:54In the social structure of lions, fate
3:13:57has backed Mafiri and his younger
3:13:59brother into a corner.
3:14:06Just two brothers are not enough to form
3:14:08a powerhouse coalition, which means no
3:14:11territory and no opportunity to pass on
3:14:14their legacy.
3:14:21The two wandering brothers are robust
3:14:23and skilled hunters, yet they lack their
3:14:26queens.
3:14:29Clearly, this is not a welcome surprise.
3:14:35>> They want the lioness, but not the
3:14:37little one.
3:14:42Fortunate for them, she is all alone.
3:14:46But Subira is no pushover.
3:14:52Without their mother, her two cubs lose
3:14:55their ultimate shield.
3:14:59The nomadic males take full advantage of
3:15:01this situation.
3:15:09By the time the heartbroken mother calls
3:15:12out for her young, the worst has come to
3:15:15pass.
3:15:24Only one answers the call and runs back
3:15:27to her.
3:15:37How many more cubs will she lose to
3:15:39those raiders?
3:15:45Aching and exhausted, Subira still tries
3:15:48to guide her remaining little one back
3:15:50to the pride.
3:15:55Their journey is short now, but Subira
3:15:58is running on empty,
3:16:03and suddenly a tantalizing scent [music]
3:16:06catches her attention.
3:16:13The scent of [music] prey.
3:16:18The aroma of a freshly prepared meal.
3:16:30The male cheetah coalition has just
3:16:32brought down a young wilderbeast. A feat
3:16:35that no single cheetah could ever
3:16:37accomplish alone. Their
3:16:42combined weight reaches 300 kg of pure
3:16:46prime muscle.
3:16:53After days of going hungry, the stress
3:16:56hormone cortisol in her body has spiked
3:16:59significantly, paralyzing the rational
3:17:02center of her brain.
3:17:09But the five cheetah brothers do not
3:17:11budge.
3:17:16The old law of the savannah only holds
3:17:19true for a mighty pride, not for an
3:17:22exhausted, solitary female.
3:17:29As Subira lunges in, something
3:17:31unprecedented in the history of this
3:17:33coalition occurs. They refuse to back
3:17:37down.
3:17:38A breathless clash erupts.
3:17:52A Subira in her prime would need just 3
3:17:55seconds to realize those 300 kg of
3:17:58cheaters are too risky a gamble and
3:18:01withdraw. But today she has lost her
3:18:05clarity.
3:18:08Right in the nick of time, Kaye emerges
3:18:11from the south in [music] less than 2
3:18:13minutes.
3:18:17He does not need to know what is
3:18:18unfolding. But the distressed roar of
3:18:21his pride female is a supreme command
3:18:24etched into the DNA of a king.
3:18:28Kay's black mane cresting the horizon is
3:18:32more than enough. The cheetah pack does
3:18:35not waste another second calculating.
3:18:41This is what a pride provides. A
3:18:44structure solid enough to lean on when a
3:18:46member cannot stand alone.
3:18:49That is exactly what Achilles lacks. And
3:18:52that is what in a day to come will make
3:18:55all the difference.
3:19:10On the open savannah, a 2.5year-old
3:19:13lioness is expanding her patrol toward
3:19:16the northeast.
3:19:22Like any other young member wanting to
3:19:25[music] prove her worth to the pride,
3:19:27she steps alone into this buffer zone
3:19:30where prey density is just right and the
3:19:34presence of rivals is sparse.
3:19:40A perfect test for a rookie learning to
3:19:43stand on her [music] own.
3:19:49Suddenly, her nose catches an unfamiliar
3:19:52[music] scent.
3:19:57It is the scent trail of a cheetah.
3:20:06But on the other side, Achilles has
3:20:09already sensed the looming [music]
3:20:10threat.
3:20:15A masterclass in distraction [music]
3:20:17tactics.
3:20:21As the predator is forced to choose a
3:20:23target, Achilles makes an entirely
3:20:26unexpected move.
3:20:32Achily knows she cannot win a
3:20:33head-to-head battle, but her sole
3:20:36objective is to stop her in her tracks.
3:20:39This audacity causes the lioness to
3:20:41pause [music] for 0.5 seconds in sheer
3:20:44astonishment.
3:20:46Her
3:20:58target is the flank. Not enough to cause
3:21:01lasting harm, but sufficient to freeze
3:21:04her rival in a decisive moment.
3:21:10Out in the open field, any attempt by
3:21:13the lioness to accelerate is completely
3:21:16futile.
3:21:20From four hidden vantage points,
3:21:22high-pitched chirps ring out. One by
3:21:25one, all four cubs are safe.
3:21:30Nothing in the natural world moves quite
3:21:32like a large buffalo herd. Not as
3:21:34individuals, not step by step,
3:21:39but as a single dense black mass, a vast
3:21:43living entity moving with a shared
3:21:46rhythm, a shared awareness, a survival
3:21:49instinct [clears throat] transmitted
3:21:50through every member.
3:21:53They need water, as every species does,
3:21:57but they approach the riverbank in a
3:21:59manner no other grazing species dares to
3:22:02replicate.
3:22:04Cape buffalo advance as though the river
3:22:06belongs to them. Despite weighing close
3:22:09to one ton and carrying lethal horns,
3:22:11the true strength of the buffalo is not
3:22:13the individual.
3:22:15Their true strength is numbers.
3:22:19And more fundamentally, the instinct to
3:22:21attack on mass.
3:22:25Most grazing species respond to danger
3:22:27by fleeing. This is a sound evolutionary
3:22:31strategy. Speed is the weapon of those
3:22:33without weapons.
3:22:36Buffalo respond by turning and charging
3:22:39directly toward the danger. This is why
3:22:41lions,
3:22:44the only predator in Africa capable of
3:22:46bringing down a mature buffalo, are also
3:22:49the prey species [music] most likely to
3:22:51be killed by buffalo in return.
3:22:54When a lion attacks a buffalo, the herd
3:22:57assembles.
3:22:58This response is not a simple reflex.
3:23:02Research on buffalo behavior indicates
3:23:04they are capable of identifying [music]
3:23:06specific individual lions
3:23:08through the scent profile and
3:23:10vocalization signature of each attacker.
3:23:15A lion that has previously attacked the
3:23:17herd triggers a stronger collective
3:23:19response than an unknown lion would.
3:23:23The herd remembers its enemies. The
3:23:26evolutionary arms race between these two
3:23:29species has continued for millions of
3:23:32years.
3:23:37[snorts]
3:23:38The herd has memory, chemical memory,
3:23:41anchored to scent. The oldactory system
3:23:45of the buffalo can distinguish lion
3:23:47scent from several hundred meters,
3:23:49recognizing the distinctive signature of
3:23:52each predator species.
3:23:54In the dry season, scent molecules are
3:23:57not absorbed by moisture. They diffuse
3:24:00further, persist longer, and carry more
3:24:03clearly, transforming the entire dry
3:24:06riverbank into a precise olfactory map.
3:24:09The herd has lost members to the nafu
3:24:12lions. And that scent, the scent of the
3:24:15attacks, of fresh blood, of earth
3:24:18disturbed by the struggle, remains
3:24:20present in the dry air of the Luanga.
3:24:24Buffalo do not merely remember their
3:24:26enemies, they seek them out. This is
3:24:29what ecologists term preemptive strike
3:24:33behavior,
3:24:34eliminating the next generation of
3:24:36predators while the opportunity exists.
3:24:41Each lion cub that [music] does not
3:24:43survive today is one fewer lion to hunt
3:24:46this herd next year and the year after
3:24:49across many seasons to come.
3:24:52This is strategy. Cold, precise, and
3:24:55effective.
3:24:57The behavior is not common. Most grazing
3:25:00species depart once a predator is no
3:25:03longer present.
3:25:05But buffalo have made a different
3:25:07decision. The scent leads them in a
3:25:09single direction, toward the riverbank
3:25:12scrub, toward the old wartthog burrows,
3:25:15where the scent of lion cubs is most
3:25:17concentrated in the dry air. To an
3:25:20observer, nothing appears unusual.
3:25:23Simply a herd moving to drink.
3:25:26But above, in the old wartthog burrows
3:25:29along the bank, the children was
3:25:31sleeping, unaware of [snorts] what is
3:25:33approaching.
3:25:38The lioness is away hunting. This is the
3:25:41decision she must make every day in the
3:25:43dry season. Leave the cubs to hunt for
3:25:45the entire pride
3:25:48or remain and allow all of them to
3:25:50weaken gradually from lack of
3:25:52nourishment.
3:25:53There is no good option, only the less
3:25:56terrible one.
3:25:59She leaves the cubs in an old wartthog
3:26:01burrow, deep underground, dark and cool,
3:26:05the safest refuge available for cubs too
3:26:09small to run and too young to defend
3:26:11themselves.
3:26:15Not like thunder, not like a roar, the
3:26:17kind of vibration that only the earth
3:26:19itself perceives, transmitted through
3:26:22the feet of every species in contact
3:26:25with the ground.
3:26:27Standing still, the impala's ears
3:26:29oriented toward what the eyes have not
3:26:31yet confirmed.
3:26:35The buffalo herd arrives, a sensation
3:26:38more than a sound. And then the darkness
3:26:40arrives. The warthog burrow has become a
3:26:43trap.
3:26:45But in the moment between life and its
3:26:48alternative,
3:26:49what the body would not ordinarily
3:26:51manage suddenly becomes the only option.
3:27:06As the herd begins to move away, one cub
3:27:10can barely maintain its hold.
3:27:12Fortunately, sustained by its mother's
3:27:14rich milk, the cub is robust enough to
3:27:16withstand the considerable fall.
3:27:20Their mother has returned. They need her
3:27:22scent to settle.
3:27:28She reads what happened before she
3:27:30arrives. Only two respond to her call,
3:27:33and the lioness must locate the others.
3:27:37There is no sound, no movement within
3:27:40the burrow, only the scent of disturbed
3:27:43earth
3:27:44and the scent of what cannot be changed.
3:27:47She digs not from hope but from maternal
3:27:50instinct.
3:27:59[music]
3:28:00>> And then she does the unthinkable.
3:28:03The behavior appears brutal in
3:28:06observation, but it is calculated. The
3:28:09lioness's body is severely depleted.
3:28:12Pregnancy, nursing, and hunting under
3:28:15the harshest conditions of the year.
3:28:19Every kilogram of body mass she carries
3:28:21has been earned across long months of
3:28:23foraging in a brutal dry season.
3:28:27But more important than any other
3:28:29consideration,
3:28:31remains decomposing within the warthog
3:28:33burrow would attract the most dangerous
3:28:35enemies.
3:28:37The scent of lion cub [music] would
3:28:39remain in their memory, and they would
3:28:41return searching for that scent.
3:28:46She does not look back.
3:28:49The enceu pride carries this costly
3:28:52lesson forward into the days that
3:28:54follow. But the river does not wait for
3:28:57any species to finish learning.
3:29:00And the creatures that rule the river
3:29:03operate by their own set of laws.
3:29:18Day 43 of the dry season. The Luangwa
3:29:21has contracted to less than 1/3 of its
3:29:24peak wet season volume.
3:29:27More than 30,000 hippos, the highest
3:29:30density recorded in any river system in
3:29:33the world,
3:29:35are being compressed into the last
3:29:36remaining deep pools.
3:29:40Territories that once lay hundreds of
3:29:42meters apart now share direct
3:29:45boundaries.
3:29:48Hippos require submersion in water for a
3:29:50minimum of 16 hours each day.
3:29:56Their skin cannot produce sufficient
3:29:58protective secretion to replace the role
3:30:00that water performs.
3:30:04Hippo skin is thick but sensitive.
3:30:08At the abdomen and inner legs, the skin
3:30:10is only 2 to 3 cm thick. That is where
3:30:14no predator must be allowed to reach. At
3:30:18the peak of the dry season, the hippo
3:30:20population does not decrease, but the
3:30:23available water surface area diminishes
3:30:25by up to 70%.
3:30:28The stress of hippo compression radiates
3:30:30to every other species.
3:30:32The entire riverbank ecosystem must read
3:30:35the signals from the hippo pod before
3:30:38approaching any water point.
3:30:43In the dry season, no species can afford
3:30:46a mistake at the riverbank.
3:30:51In peak dry season, these final pools
3:30:54are not merely hippo habitat. They are
3:30:57the center of the entire remaining
3:30:58ecosystem.
3:31:03The hippos are the axis around which
3:31:06every essential movement turns.
3:31:16Order within a hippopod is not
3:31:18established daily. It is established in
3:31:20specific moments and then remembered.
3:31:24Each male knows precisely which
3:31:26individuals can defeat it and which
3:31:28cannot.
3:31:30That hierarchy requires no reminder. It
3:31:34is written in the scars on each male's
3:31:36body in the unconscious yielding
3:31:39postures when two males pass each other
3:31:41in the water in the careful attention a
3:31:43younger male pays to the larger male's
3:31:46position before choosing his next
3:31:48direction.
3:31:50Territory boundaries are marked by the
3:31:52male hippo coats the riverside
3:31:54vegetation with a chemical signal that
3:31:56any passing hippo reads immediately.
3:32:00When a male judges itself strong enough
3:32:02to challenge the dominant bull, the
3:32:04decisive confrontation begins. They
3:32:08clash, but the primary weapon is not the
3:32:10curved [music] canine. It is the
3:32:12protruding incizers. Wounds are
3:32:14inevitable.
3:32:20But when neither withdraws,
3:32:23the wounds from a full engagement
3:32:25between two bull hippos can extend to 50
3:32:29cm in length. The rate of male hippo
3:32:32mortality from internal conflict exceeds
3:32:35the rate from any predator attack.
3:32:40The dry season compresses living space,
3:32:42generating conflicts that cannot be
3:32:44avoided.
3:32:46And when the confrontation ends, the
3:32:48defeated male swims to shore. His body
3:32:52carries fresh wounds, testosterone still
3:32:55surging.
3:33:09When a defeated bull hippo brings his
3:33:11aggression out of the water, the entire
3:33:14riverbank reads it.
3:33:17A small signal that any [music]
3:33:18attentive species can read.
3:33:21Each of these signals comes from a
3:33:23different species, but all convey the
3:33:25same message.
3:33:27This space is not safe at this moment.
3:33:31The lions have observed the
3:33:33confrontation in the water.
3:33:35They do not act rashly, but neither do
3:33:38they withdraw.
3:33:40Their composure displeases the defeated
3:33:42bull. He must assert himself. He must
3:33:46make clear he is not diminished.
3:33:49Then Sephu pride momentarily startles.
3:33:54If they intend to make their presence
3:33:56known to others, they must hold their
3:33:58ground.
3:34:00Reading that language is not weakness.
3:34:02It is the reason they are still here
3:34:04after all the dry seasons that have
3:34:06passed.
3:34:21No agreement has been signed. No
3:34:24boundary has been drawn. But across
3:34:27thousands of years of sharing the same
3:34:29river, hippos and Nile crocodiles have
3:34:32developed a complex relationship. Two
3:34:35species in the same water, not from
3:34:38friendship, but because conflict is
3:34:40never advantageous for either.
3:34:44But the more remarkable element is what
3:34:46occurs within the ecological chain.
3:34:49Hippo excrement enriches algae and
3:34:51phytolankton with nutrients.
3:34:55Phytolanton sustains small fish. Small
3:34:59fish sustain larger fish. Crocodiles
3:35:01feed better because hippos exist.
3:35:05A mature hippo produces approximately 9
3:35:08tons of excrement annually.
3:35:11All of it dissolving in the water,
3:35:13creating a nutrient cycle with no
3:35:15designer [music] and no intention behind
3:35:17it.
3:35:19and more relevant to what is about to
3:35:21unfold. When the hippopod moves
3:35:24downstream in the late afternoon, the
3:35:26crocodiles reposition accordingly.
3:35:30[music] The result, the largest
3:35:32crocodiles now hold position at the
3:35:34crossing point that the insephu pride
3:35:36surveys from the northern bank.
3:35:39No less formidable than the hippos, they
3:35:42represent another dimension of the
3:35:44challenge the lions must face.
3:35:47The Ensephu Pride assesses the water
3:35:49ahead.
3:35:55This is something hippos do hundreds of
3:35:57times each day.
3:36:03Hippos have no reason to concern
3:36:05themselves with lions. Lions pose no
3:36:08threat to a 1,500 kg animal operating
3:36:12within its aquatic domain.
3:36:15But that indifference contains a
3:36:17reality. Hippos will not intervene. What
3:36:21happens in the water once the lions
3:36:23descend is the river's business alone.
3:36:28It is time for the hippos to graze.
3:36:32They will sweep through the grassland
3:36:34before returning to the water. A female
3:36:37hippo has been selected.
3:36:40The pride launches its attack.
3:36:44A hippo can disregard most threats, but
3:36:47not a threat to its own survival. And
3:36:50the hippo will do whatever it takes to
3:36:52survive.
3:37:03She has survived though her eyes remain
3:37:06wide with alarm.
3:37:10Seeu
3:37:18is not simply a name. It is a history.
3:37:21This pride has operated across the
3:37:23northern bank of the Luanga for multiple
3:37:25generations.
3:37:32Long enough for the buffalo of the area
3:37:34to learn that a roar from the north
3:37:36means do not approach.
3:37:39Eight months ago they numbered 18.
3:37:44Now they are 12. In that interval, two
3:37:48adult males died in territorial
3:37:50conflicts.
3:37:53These were not brief encounters ending
3:37:55with the loser retreating. They were
3:37:57prolonged engagements.
3:38:02That nu's aging males could no longer
3:38:04endure, ending in the only way left
3:38:07available.
3:38:13Several young cubs died from starvation
3:38:15and disease
3:38:17during weeks when the dry season
3:38:19extended beyond its usual duration.
3:38:22Lion cubs are exceptionally vulnerable
3:38:24to environmental pressure. Under normal
3:38:27conditions, fewer than 20% survive to
3:38:31one year of age.
3:38:33In an atypical dry season, that figure
3:38:36falls considerably lower.
3:38:39But the numbers are not the most
3:38:41alarming element of Enfu's story.
3:38:45The most alarming element is what
3:38:47disappears with each individual lost.
3:38:51Each lion carries within it a portion of
3:38:54the territorial map, a portion of the
3:38:56hunt's history, a portion of accumulated
3:38:59knowledge about its enemies.
3:39:02When a lion dies,
3:39:05it takes with it years of accumulated
3:39:07experience that cannot be conveyed to
3:39:10the young. The Enseu territory once
3:39:13extended across tens of square
3:39:15kilometers encompassing the richest
3:39:17grasslands, the densest prey
3:39:20concentrations, and the most reliable
3:39:22water sources in the region. This was
3:39:25the product of generations of
3:39:26territorial maintenance of encounters.
3:39:28[music]
3:39:29But the pride from the north did not
3:39:31come to negotiate. They came to take.
3:39:34And with greater numbers, younger males,
3:39:36[music] and superior strength, they
3:39:39succeeded.
3:39:40Nifu was pushed ever closer to the
3:39:43river.
3:39:45That territory carries a cost. Prides
3:39:48that occupy the riverbank for extended
3:39:50periods must acquire new skills.
3:39:53How to read water levels. how to operate
3:39:56in a space where danger arrives from
3:39:58multiple directions simultaneously.
3:40:02Prides that fail to acquire these skills
3:40:05rarely survive a second dry season here.
3:40:09Lion prides displaced to the riverbank
3:40:12typically do not survive three
3:40:14consecutive dry seasons.
3:40:17Inseu is in the first year of that
3:40:19trial.
3:40:20Can these 12 members endure the harshest
3:40:23dry season of their lives? The answer
3:40:26depends on what they learn and how
3:40:29quickly.
3:40:37[music]
3:40:40The savannah in early morning carries a
3:40:43particular quality of light. These are
3:40:45dagger [music] boys, old males expelled
3:40:48from the herd by the rules of hierarchy,
3:40:51moving in pairs or alone.
3:40:54The name derives from archaic Africans.
3:40:57Dagger, meaning mud. Dagger boys are no
3:41:02longer young. They are no longer as
3:41:04swift as the males within the main herd.
3:41:06But do not mistake that for weakness.
3:41:10An old bull carries a form of experience
3:41:13no young animal can acquire through
3:41:16ordinary growth alone.
3:41:19They have survived everything [music]
3:41:21that has attempted to end them.
3:41:25A mature bull buffalo can weigh up to
3:41:27900 kg.
3:41:29The boss is [music] not simply an
3:41:31offensive weapon. It is armor for the
3:41:35skull up to 15 cm thick. Nothing bites
3:41:38through it.
3:41:41This is what dagger boys offer their
3:41:43hunters in return. Not speed, not
3:41:46flight, attrition. Dagger boys do not
3:41:50flee. But 12 lions hunt as a unit. When
3:41:54one tires, another advances.
3:42:06>> [music]
3:42:08>> This is what coordinated group hunting
3:42:11gives the lion.
3:42:17The capacity to wear down an opponent
3:42:19over time. Finally, as the afternoon
3:42:22shadows lengthen [music] once more, the
3:42:25dagger boys go down for the first time
3:42:28in days. a substantial meal that is
3:42:31entirely theirs. The other bull they
3:42:34leave for those waiting below in the
3:42:36river. The crocodiles have registered
3:42:39the struggle and claim their share while
3:42:41the pride is occupied with its own.
3:42:45But on the upper bank in the descending
3:42:47darkness, the buffalo herd does not
3:42:50leave. The memory of a buffalo herd is
3:42:52more formidable than any weapon.
3:42:56If you are finding this documentary
3:42:58compelling, [music]
3:42:59please like and subscribe.
3:43:02It helps us bring you more content like
3:43:04this. Do not leave your screen.
3:43:08The survival journey and the fiercest
3:43:11battles of the Lion Pride are still
3:43:13ahead.
3:43:2966 million years ago, an object from
3:43:32beyond Earth's atmosphere ended the era
3:43:35of the species that had dominated this
3:43:37planet.
3:43:38Dinosaurs disappeared. Crocodiles are
3:43:41still here.
3:43:43The Nile crocodile is the result of 200
3:43:46million years of optimization refined to
3:43:49a point where in literal terms there is
3:43:51nothing left to improve.
3:43:54A fourchambered heart, the only one of
3:43:57its kind among reptiles,
3:44:00allows oxygen delivery as efficient as
3:44:02that of birds or mammals. This grants
3:44:05the crocodile the capacity for brief
3:44:07explosive bursts of activity without the
3:44:10cost of extended recovery time.
3:44:13Specialized eard drums allow
3:44:15simultaneous hearing both underwater and
3:44:17above the surface.
3:44:19A dual sensory system possessed by no
3:44:22other species. The nictitating membrane,
3:44:26a third eyelid, allows clear underwater
3:44:28vision while protecting the eye from
3:44:30damage.
3:44:32Bite force reaches 22,000 ntons, the
3:44:36most powerful of any living creature on
3:44:38land. And above all else, hundreds of
3:44:41sensory receptors capable of detecting
3:44:44microscopic movement in the water,
3:44:47distinguishing the ripple of a moving
3:44:49animal from the ripple of wind or
3:44:51current, allowing the crocodile to see
3:44:54in turbid water through touch.
3:44:58When a species has persisted here for
3:45:00200 million years without fundamental
3:45:02change,
3:45:04that is the mark of absolute perfection.
3:45:08Their most dangerous attribute cannot be
3:45:10measured by any instrument. Patience.
3:45:14A Nile crocodile can remain motionless
3:45:16for more than 2 hours. Heart rate
3:45:19decreases to two or three beats per
3:45:21minute. Body temperature falls to match
3:45:24the surrounding environment. They are
3:45:26waiting for an unwary animal.
3:45:30Anything that enters the range of a Nile
3:45:32crocodile
3:45:34becomes potential prey if the moment is
3:45:36right.
3:45:39Along the Luangwa's banks, vultures
3:45:41require water, as every species does.
3:45:45Crocodiles do not strike from strong
3:45:47currents.
3:45:50They do not strike when prey remains
3:45:52entirely on dry ground. They wait until
3:45:56prey has entered water deep enough. The
3:45:59vulture stands in water that is too
3:46:01deep.
3:46:03That is its only mistake. And that
3:46:06mistake occurs only once.
3:46:14In seconds, it is over.
3:46:17The crocodile pulls its prey below the
3:46:20surface. The riverbank returns to its
3:46:22previous state as though nothing has
3:46:24happened. Because to the river, nothing
3:46:27unusual has occurred at all.
3:46:31This is what happens every day. This is
3:46:34what has happened for millions of years.
3:46:40[music]
3:46:41Even so, the pull of water cannot be
3:46:44resisted. Despite knowing the risk,
3:46:47those that have spent hours grazing must
3:46:50still take that [music] risk to quench
3:46:53thirst.
3:46:55Puku are among the most studied species
3:46:57in riverine prey population [music]
3:46:59research in southern Zambia. At birth,
3:47:02they stand approximately 35 to 45 cm at
3:47:06the shoulder, small enough to stand
3:47:08beneath their mother's belly. This one
3:47:10is somewhat larger than at birth, but
3:47:13not large enough to understand what it
3:47:15is walking into. It is thirsty. It has
3:47:18become separated, and it comes to the
3:47:21riverbank to drink. And in that moment,
3:47:24it sees its mother on the opposite bank,
3:47:27not far, just a stretch of dry season
3:47:30river, approximately 30 cm deep.
3:47:34When the young puku enters the water,
3:47:37the predators have already registered
3:47:39it. The young puku reaches the opposite
3:47:41[music] bank. Water drips from four
3:47:43small legs. Its mother is there. This is
3:47:47not a lesson about luck.
3:47:50It is a lesson about probability. and
3:47:52the reality that in a sufficiently
3:47:54complex ecosystem,
3:47:57no species controls every outcome, not
3:48:00even the ultimate predators.
3:48:03What does the story of the young puku
3:48:05leave you feeling? Let us know in the
3:48:07comments below.
3:48:09And do not forget to like and [music]
3:48:11subscribe to follow more stories from
3:48:13the wild kingdom.
3:48:17The question posed at the beginning of
3:48:18this dry season has no simple answer.
3:48:24Hippos command the water, but not the
3:48:26aggression of their own kind, and not
3:48:29the water that recedes each day.
3:48:32Crocodiles command the crossing points,
3:48:34but not which route their prey chooses,
3:48:38and not the young puku that enters the
3:48:40water without knowing they are there.
3:48:44Lions command the flood plane, but not
3:48:47the dry season, not the contraction of
3:48:50their territory, not the revenge
3:48:52instinct of species that remember scent,
3:48:54and not the warthog burrows that are no
3:48:57longer the refuge they once were. No one
3:49:00controls the Luanga, but this is not
3:49:03failure. This is how the system is
3:49:05designed. In ecology, there is a concept
3:49:08known as the keystone species.
3:49:11remove it and the entire system
3:49:14collapses. At the luanga in dry season,
3:49:17there is not one keystone [music]
3:49:19species. There are three.
3:49:23Hippos generate the nutrients [music]
3:49:25that sustain the entire aquatic food
3:49:27chain.
3:49:29Crocodiles maintain the river by
3:49:31removing the weak and the dead.
3:49:35Lions regulate the density of large
3:49:37grazing species. The dry season
3:49:39compresses all of those relationships
3:49:41into the same space.
3:49:44From the start of this dry season, we
3:49:46ask, what controls the outcome when the
3:49:48three most dangerous animals in Africa
3:49:51are forced to share the same final
3:49:53space?
3:49:55The answer is not any one species. The
3:49:58answer is the space itself,
3:50:01the ecosystem of which every species is
3:50:03a part shaped by it.
3:50:06and regardless of strength, incapable of
3:50:09escaping its laws. And when the reigns
3:50:12return, they will disperse, each species
3:50:15reclaiming its own kingdom.
3:50:22Exposed at top the protruding copiers,
3:50:24the lion pride presides with the
3:50:27authority of true sovereigns.
3:50:29Each wind carries the scorching breath
3:50:32of the arid subsaharan expanse across
3:50:34their kingdom.
3:50:36The ultimate rulers absorb the harsh
3:50:38sunlight, affirming their inviable
3:50:41position. With a membership of up to 40
3:50:44individuals, this is the most formidable
3:50:46assembly across the entire savannah. The
3:50:49sheer scale of the pride establishes a
3:50:52dominant empire, the key to their
3:50:54formidable collective strength.
3:50:57The male lions possess the commanding
3:51:01man, a mark of identity worn with pride.
3:51:06a reinforced shield in combat, an
3:51:09unambiguous declaration of masculine
3:51:11strength and capability.
3:51:15But the lionesses
3:51:17are the backbone. They form the core,
3:51:20maintaining the closed bond that holds
3:51:22the members together.
3:51:25They are the hunters, agile and the most
3:51:28strategically intelligent with explosive
3:51:31speed reaching 80 km hour.
3:51:35in coordinated hunting formations
3:51:38precisely calculated.
3:51:43And that is the greatest concern for the
3:51:45cheetah mother when she inadvertently
3:51:47enters the territory of these kings.
3:51:52When a lioness detects the cheetah
3:51:54family seeking cover in a state of
3:51:55exhaustion, a death sentence is issued
3:51:58without a moment's hesitation.
3:52:01After a prolonged chase, the cheetah
3:52:03mother is entirely depleted and is
3:52:06forced to deploy in desperation. The
3:52:09distraction display. She uses her own
3:52:12body as a decoy, attempting to draw the
3:52:14lioness's attention,
3:52:17to create an opportunity for her four
3:52:20cubs to escape. But in the end, only one
3:52:24cub survives. Here, speed may deliver a
3:52:27meal, but only strength can [music] hold
3:52:30the future.
3:52:32But the lion is not the only concern.
3:52:37Beneath the waterpools, the Nile
3:52:40crocodile has persisted for millions of
3:52:42years by perfecting the art of ambush.
3:52:46The Talic River is a waterway of
3:52:49constant change.
3:52:51The swift current means that the young
3:52:54cheaters
3:52:55have no time to register the danger.
3:52:58Concealed just beyond the fallen log,
3:53:02the art of crypsis, as practiced by the
3:53:04Nile crocodile, has reached its highest
3:53:07expression, it has mastered buoyancy
3:53:09control, transforming its massive body
3:53:12into a silent element of the landscape.
3:53:17In a fraction of a second of pure alarm,
3:53:20the previously calm surface erupts.
3:53:23Fortunately, the pre-programmed reflexes
3:53:28of the fastest predator on the planet
3:53:31allow the cheetah to avoid a fatal
3:53:33outcome by the narrowest margin with an
3:53:36improbable evasive movement at the
3:53:38center of the current's force. But this
3:53:40young cheetah does not share that
3:53:43fortune.
3:53:44The turbid water swirls, drawing the
3:53:48small creature into depth.
3:53:52The river sustains life for those that
3:53:55come to the water and also uses them to
3:53:58sustain those that live within it. This
3:54:01is how the cycle of life turns.
3:54:08Even the lion is not exempt from
3:54:12this relentless cycle.
3:54:17When it inadvertently enters the
3:54:19crocodile's aquatic territory
3:54:23beneath the surface, every physical
3:54:25advantage and every agility advantage of
3:54:27land
3:54:30possessed by the big cat is neutralized.
3:54:34particularly when that big cat is a lion
3:54:37cub not yet grown.
3:54:40Even so, in the game of nature, terrain
3:54:43is always the [music] decisive factor.
3:54:46The Nile crocodile must sometimes leave
3:54:49the water to thermo regulate. At that
3:54:54moment, the situation reverses
3:54:56immediately. It has entered territory
3:54:59controlled by lions.
3:55:05The male lions with their superior
3:55:08weight and strength do not attack the
3:55:10dense dorsal armor of the Nile crocodile
3:55:12directly.
3:55:14They target the most vulnerable points,
3:55:16the hind legs and the soft underside.
3:55:20The crocodile's armored scales become
3:55:23irrelevant.
3:55:25The entire pride engages in a decisive
3:55:28takedown, not to satisfy hunger, but to
3:55:32reassert a fundamental truth. On this
3:55:34ground, the authority of the lion is
3:55:37absolute.
3:55:44The last to challenge, the lion is not
3:55:48an [music] aggressive predator,
3:55:50but a creature of profound paradox. A
3:55:53bird that defies every expectation of
3:55:56the sky.
3:55:59The ostrich, the largest bird on the
3:56:02planet.
3:56:05This 3 m tall creature has abandoned the
3:56:08capacity for flight in order to run
3:56:10against mortality across the African
3:56:13plains for 20 million years.
3:56:19With its long, flexible neck and eyes
3:56:22larger in diameter than its own brain,
3:56:24the ostrich detects any lurker behind
3:56:27the grass with ease.
3:56:30While most bird species retain a
3:56:32four-toed foot structure, the ostrich
3:56:35retains only two,
3:56:38minimizing ground friction [music] to
3:56:39the greatest possible degree, allowing
3:56:42its body of more than 100 kg to reach 90
3:56:45km hour.
3:56:49Every effort of the savannah's female
3:56:52[music] sovereign dissolves into
3:56:54nothing. The lioness can only watch as
3:56:56her quarry vanishes behind a curtain of
3:56:58dust.
3:57:04Even in a situation of extreme pressure,
3:57:06the ostrich still holds its final
3:57:09defense. A powerful kick from its
3:57:11formidable legs. With thousands of
3:57:13pounds of pressure, a direct strike from
3:57:15its foot is sufficient to fracture the
3:57:18skull of a mature lion. We have just
3:57:20witnessed the roarest glimpses of
3:57:22Alaska's untamed wilderness. Which
3:57:25creature in today's episode changed your
3:57:27perspective on the wild? Was it the
3:57:30fierce clash of the mighty bears or the
3:57:32bizarre showdown between the wolf and
3:57:34the porcupine?
3:57:36Share your thoughts in the comments
3:57:37below. Your understanding is the
3:57:40greatest tribute to these wild animals.
3:57:42Don't forget to hit like and subscribe
3:57:45to join me on my next field expeditions
3:57:48where we'll continue to decode the
3:57:50ultimate secrets of survival. And if
3:57:52you're eager to explore more, check out
3:57:54Win or Die full episode, Deadliest
3:57:58Battles for Survival, or Lion Attack:
3:58:01The Mapogo Battle for Survival.