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♪♪

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NARRATOR: 
Hidden in the heart of Africa

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lies a place of wonder.

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♪♪

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This bountiful terrain

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draws migrants 
in their thousands.

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But not all can make 
such journeys,

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and so this rugged land

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is the permanent home 
of three tribes.

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[ Hippos grunting ]

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Hippos...

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crocodiles...

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...and lions.

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Each wary of the other...

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[ Crocodile hisses ]

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...their stories unfold 
in parallel.

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[ Thunder rumbles ]

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They live in harmony -- 
more or less --

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until a fierce climatic cycle 
turns their world upside down.

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♪♪

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Relentless drought

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turn tussles over territory...

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[ Elephant grunting ]

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...into battles for survival.

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[ Thunder crashes ]

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What should be life-giving rain

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delivers floods 
of biblical proportion.

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These age-old floodplains 
are no longer ruled

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by vagabond lions...

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[ Lion growls ]

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...but by a greater power.

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This is Katavi.

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♪♪

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♪♪

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NARRATOR: 
At the heart of Africa's

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Great Rift Valley 
in western Tanzania

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lies an ancient ribbon of land, 
remote and inaccessible.

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Katavi is almost 2,000 square 
miles of unspoiled wilderness.

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♪♪

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♪♪

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The black wings of open-billed 
storks fill Katavi's skies.

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The low water levels 
for this time of year

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draw them here unusually early

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and in unprecedented numbers.

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A sign of rare,

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once-in-a-lifetime climate 
phenomenon gripping the land.

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[ Storks chittering ]

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[ Lioness growls ]

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And under 
this foreshadow of disaster,

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new life is beginning.

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A young lioness has given birth.

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She is Mwezi, 
a member of the pride

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that lives along the banks 
of the Katuma River.

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♪♪

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This is her first litter.

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[ Cubs mewling ]

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Four healthy lion cubs, 
just a few hours old

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and only just beginning 
to open their eyes.

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♪♪

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A month ago, 
she separated from the pride

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to find a secluded place to 
bring her cubs into the world.

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But it will soon be time 
to introduce these little ones

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to the rest of the family.

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♪♪

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Motherhood is exhausting.

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♪♪

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As her cubs get bigger,

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she'll need the support 
of her own mother and aunts.

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And the protection 
of their father, Arthur.

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♪♪

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But weeks ago,

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Arthur followed the buffalo 
herds into the forest

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and has still not returned.

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♪♪

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♪♪

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Unbeknown to this 
first-time mother,

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he was wounded in battle...

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[ Lion growls ]

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[ Lion growls, buffalo grunts ]

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[ Lion roars ]

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...immobilized 
and left for dead.

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♪♪

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Their cubs have been born 
at a precarious moment in time.

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♪♪

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For this time of year, 
rainfall is extremely low.

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Less grazing 
means prey is scarce

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in what would usually be 
a time of plenty.

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But for the open-billed storks,

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the shallow river provides 
a feeding opportunity

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not to be missed.

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♪♪

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Their early arrival warns 
of an extreme drought.

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♪♪

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♪♪

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[ Lioness mewling ]

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♪♪

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Mwezi's calls for her family's 
support go unanswered.

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But not unnoticed.

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A rogue male who arrived 
with the buffalo weeks ago

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has been biding his time.

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♪♪

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Over the next few weeks, 
there's still no rain.

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The once mighty Katuma River 
is little more than a stream.

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[ Elephants trumpet, grunt ]

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[ Elephant trumpets ]

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Reunited with the sisterhood,

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Mwezi does her best 
to conserve energy.

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The pride is growing.

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Mwezi's mother, Patch, 
has new cubs, too --

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her fifth litter.

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[ Hippos grunting ]

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An experienced mother, 
she's well aware of

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how many dangers the cubs face.

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♪♪

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♪♪

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♪♪

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♪♪

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They share the dwindling river 
with elephants and hippos.

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As herbivores, they're 
no direct threat to the cubs.

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But Patch is jumpy.

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♪♪

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The water's edge is 
not a safe place to be.

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Hippos can be unpredictable.

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And crocodiles could be 
lurking just under the surface.

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The cubs must get to know 
their neighbors.

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[ Elephants grumbling ]

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And learn to respect 
their boundaries.

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♪♪

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Katavi is a tough place 
for lions.

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Few cubs survive their first 
year here at the best of times.

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♪♪

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♪♪

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♪♪

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With scant resources 
and a missing father,

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this family is facing 
the worst of times.

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But there is one positive.

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The rest of the pride 
is together.

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Patch and Mwezi can share the 
task of raising the eight cubs

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they have between them.

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♪♪

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Set back from the river,

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this grove of trees 
is the ideal base for the pride.

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Nooks and crannies provide 
places to escape the heat...

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...and hide, if necessary.

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While the grown-ups 
use the higher levels

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as a vantage point 
for spotting prey

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and potential threats 
to the cubs.

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In the cool of the morning,

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Patch usually leads 
the pride on patrol.

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She's hungry 
and running out of milk.

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[ Cubs mewling ]

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♪♪

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Despite this, she 
doesn't join the pride today.

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♪♪

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Mwezi remains behind 
on mothering duty, too.

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Adult lions can survive without 
food for almost two weeks.

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The cubs cannot.

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The rest of the pride sets off 
along the banks of the Katuma

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where they can stay close 
to shade and water

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in the rising heat.

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♪♪

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With so little rain this year,

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only the largest bends 
in the river are deep enough

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for hippos to wallow.

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Space is at a premium,

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so securing a place in the water

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means taking 
extraordinary measures.

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Displaced by low water levels 
upstream,

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these two males are challenging 
the dominant resident bull.

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[ Hippos grunting ]

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This is extremely unusual, even 
for this experienced alpha male.

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♪♪

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It's unnerving for a female 
and her vulnerable calf.

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[ Hippos grunting ]

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♪♪

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The resident alpha male faces up 
to one of the challengers...

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♪♪

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...who seems to back down...

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♪♪

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[ Hippo grunting ]

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...but then proceeds 
to enter the bull's territory...

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...much to the dismay 
of the resident females.

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The alpha is 
not sure what to do.

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Try to displace the guy 
in the water...

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[ Hippo bellows ]

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...or take on the one 
bellowing at him on land?

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[ Hippos grunting ]

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♪♪

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He's never encountered 
a situation like this before.

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♪♪

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Opening his jaws as wide as he 
can might warn off his attacker.

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No such luck.

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[ Hippos bellow ]

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And his threat display 
has backfired.

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His nose is now 
well and truly pierced.

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[ Hippos grunting ]

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The other challenger 
seizes the opportunity...

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[ Hippos grunting ]

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...and joins in the fight.

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The poor old alpha 
is in dire straits.

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[ Hippo growling ]

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Attack from two cooperating 
males is incredibly rare.

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They have a combined weight 
of over 10,000 pounds.

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And the strongest bite force 
of any land animal.

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They push and pull him 
into deeper water.

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♪♪

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Even at rest, a hippo can only

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hold its breath 
for five minutes.

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[ Hippos grunting ]

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The challengers seem to know

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that holding him under 
will drown him.

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♪♪

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♪♪

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If the alpha dies,

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this baby hippo is likely 
to be killed by his successors.

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♪♪

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So, as the old bull 
takes his final breaths,

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the mother quietly slips away 
with her calf.

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[ Hippos grunting ]

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A coup by two hippo bulls 
is out of the ordinary.

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But this is no ordinary year.

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A deepening drought 
brought about

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by a once-in-a-lifetime 
weather shift

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is altering animal behaviors 
across Katavi.

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As a new day dawns

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on a radically changed 
hippo colony...

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♪♪

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♪♪

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...the old bull 
who was once their protector,

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the father of their young,

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lies dead in one of the last 
remaining water channels.

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One by one, the clan approach 
and begin gently nuzzling him.

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It's not clear what 
is happening here.

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♪♪

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As more gather around his body,

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it's hard not to interpret 
this behavior as mourning.

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[ Hippo bellows ]

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Or at least as a way of coming 
to terms with their loss.

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♪♪

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[ Hippo bellows ]

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♪♪

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This type of procession has 
been observed with elephants

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but is extremely rare 
amongst hippos.

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[ Hippos grunting ]

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♪♪

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[ Elephants grunting ]

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♪♪

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These sweltering temperatures, 
without relief from rain,

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have not been experienced 
for almost a hundred years.

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Shady branches provide respite 
from the oppressive heat.

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One reason 
why tree climbing

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is a vital skill 
for Katavi's lions.

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♪♪

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Mwezi would never have spotted 
the warthogs from ground level.

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♪♪

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She'll need to be quick.

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♪♪

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♪♪

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And sneaky.

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Using the gullies as cover,

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she might be able to get close 
enough to launch an attack.

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♪♪

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♪♪

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[ Warthog squeals ]

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♪♪

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Sprinting for long enough 
to catch a warthog

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in this heat is impossible.

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But something else 
catches her eye.

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[ Vultures squawking ]

270
00:20:27,700 --> 00:20:31,233
Vultures are always 
worth investigating.

271
00:20:33,633 --> 00:20:37,033
They can spot prey 
from 4 miles away.

272
00:20:39,666 --> 00:20:44,800
But a feast this size 
won't stay secret for long.

273
00:20:44,800 --> 00:20:50,166
The death of the hippo 
is a bounty for the crocodiles.

274
00:20:50,166 --> 00:20:51,933
If they can get into it.

275
00:20:55,366 --> 00:20:58,966
The largest and wisest croc 
knows the technique.

276
00:21:00,233 --> 00:21:03,933
Grip...and twist.

277
00:21:04,933 --> 00:21:07,400
These ancients are 
perfectly adapted

278
00:21:07,400 --> 00:21:09,800
to a feast-and-famine existence.

279
00:21:09,800 --> 00:21:13,933
♪♪

280
00:21:13,933 --> 00:21:17,800
This meal will keep the 
whole float going for months.

281
00:21:17,800 --> 00:21:20,633
♪♪

282
00:21:23,200 --> 00:21:25,000
Alone with the cubs,

283
00:21:25,000 --> 00:21:27,966
Patch is weakening 
and desperate for a meal.

284
00:21:32,833 --> 00:21:35,600
[ Elephant trumpets ]

285
00:21:35,600 --> 00:21:38,066
Mwezi has not returned.

286
00:21:38,066 --> 00:21:45,566
♪♪

287
00:21:45,566 --> 00:21:49,933
Patch knows that vultures 
are a sure sign of food, too.

288
00:21:52,800 --> 00:21:55,966
It's a lesson 
all lions learn early.

289
00:21:55,966 --> 00:22:00,200
♪♪

290
00:22:00,200 --> 00:22:02,833
A potential meal 
right on her doorstep

291
00:22:02,833 --> 00:22:05,200
is too tempting to pass up.

292
00:22:05,200 --> 00:22:11,900
♪♪

293
00:22:11,900 --> 00:22:15,300
Patch knows leaving the cubs 
is risky.

294
00:22:18,233 --> 00:22:21,566
But she's losing condition.

295
00:22:21,566 --> 00:22:25,200
She's no milk left.

296
00:22:25,200 --> 00:22:28,433
And if she can't feed 
the little ones, they'll die.

297
00:22:28,433 --> 00:22:38,400
♪♪

298
00:22:38,400 --> 00:22:42,166
The cubs have never been left 
completely alone before.

299
00:22:45,033 --> 00:22:47,966
Camouflage is their 
only protection.

300
00:22:50,900 --> 00:22:53,033
But on the other side 
of the river,

301
00:22:53,033 --> 00:22:59,766
the rogue male is poised to take 
advantage of any opportunity.

302
00:22:59,766 --> 00:23:02,033
Camouflage may not be enough.

303
00:23:02,033 --> 00:23:07,766
♪♪

304
00:23:07,766 --> 00:23:09,766
In her weakened state,

305
00:23:09,766 --> 00:23:13,600
walking just one mile along 
the riverbank is an effort.

306
00:23:13,600 --> 00:23:18,833
♪♪

307
00:23:18,833 --> 00:23:23,366
But the scent of flesh 
in the air drives Patch on.

308
00:23:26,266 --> 00:23:29,266
And at last, 
she recognizes Mwezi.

309
00:23:29,266 --> 00:23:34,100
♪♪

310
00:23:34,100 --> 00:23:38,466
Stepping into the water with 
crocodiles is nerve-racking.

311
00:23:38,466 --> 00:23:43,533
♪♪

312
00:23:43,533 --> 00:23:47,300
Patch knows well that getting 
too close to those teeth

313
00:23:47,300 --> 00:23:48,966
can be hazardous.

314
00:23:48,966 --> 00:23:51,066
[ Lioness growls ]

315
00:23:51,066 --> 00:23:53,733
♪♪

316
00:23:53,733 --> 00:24:02,566
♪♪

317
00:24:02,566 --> 00:24:06,300
If a croc grabs her, 
she'll never escape.

318
00:24:10,633 --> 00:24:13,233
But with her own teeth 
wearing down,

319
00:24:13,233 --> 00:24:17,933
the soft hippo flesh is just the 
meal she so desperately needs.

320
00:24:17,933 --> 00:24:27,933
♪♪

321
00:24:27,933 --> 00:24:37,933
♪♪

322
00:24:37,933 --> 00:24:40,666
♪♪

323
00:24:40,666 --> 00:24:43,566
Starvation emboldens her.

324
00:24:44,800 --> 00:24:47,733
[ Lioness growling ]

325
00:24:47,733 --> 00:24:52,733
♪♪

326
00:24:52,733 --> 00:24:56,700
But with every bite, 
she's dancing with death.

327
00:24:56,700 --> 00:24:59,533
[ Lioness growling ]

328
00:24:59,533 --> 00:25:09,600
♪♪

329
00:25:09,600 --> 00:25:17,400
♪♪

330
00:25:17,400 --> 00:25:22,600
Not a moment too soon, 
reinforcements arrive.

331
00:25:22,600 --> 00:25:25,066
The rest of the pride on patrol

332
00:25:25,066 --> 00:25:28,766
have also followed the vultures 
to the hippo carcass.

333
00:25:28,766 --> 00:25:38,766
♪♪

334
00:25:38,766 --> 00:25:48,766
♪♪

335
00:25:48,766 --> 00:25:56,233
♪♪

336
00:25:56,233 --> 00:25:58,566
The balance of power shifts.

337
00:25:58,566 --> 00:26:06,866
♪♪

338
00:26:06,866 --> 00:26:11,466
And reluctantly, the crocodiles 
relinquish their prize.

339
00:26:11,466 --> 00:26:14,100
[ Lioness growls ]

340
00:26:14,100 --> 00:26:18,866
♪♪

341
00:26:18,866 --> 00:26:22,533
At last, 
the pride can feed properly.

342
00:26:22,533 --> 00:26:27,300
♪♪

343
00:26:27,300 --> 00:26:29,300
Each will eat their fill,

344
00:26:29,300 --> 00:26:32,066
up to a quarter 
of their own body weight.

345
00:26:32,066 --> 00:26:42,066
♪♪

346
00:26:42,066 --> 00:26:49,900
♪♪

347
00:26:49,900 --> 00:26:53,200
But with the whole pride absent 
from the den,

348
00:26:53,200 --> 00:26:56,566
they could pay the 
ultimate price for their meal.

349
00:27:02,166 --> 00:27:04,833
Less than a mile downriver,

350
00:27:04,833 --> 00:27:08,600
the rogue male is crossing 
into the pride's territory.

351
00:27:08,600 --> 00:27:18,600
♪♪

352
00:27:18,600 --> 00:27:25,366
♪♪

353
00:27:25,366 --> 00:27:28,433
He's been watching and waiting.

354
00:27:28,433 --> 00:27:37,133
♪♪

355
00:27:37,133 --> 00:27:42,133
There's been no sign of Arthur, 
the pride male, for weeks.

356
00:27:42,133 --> 00:27:46,000
♪♪

357
00:27:46,000 --> 00:27:49,033
The time is ripe for a takeover.

358
00:27:49,033 --> 00:27:54,533
♪♪

359
00:27:54,533 --> 00:27:58,900
All that stands in his way 
are the cubs.

360
00:27:58,900 --> 00:28:00,900
If he's to father his own,

361
00:28:00,900 --> 00:28:05,600
he needs the females 
to come back into estrus.

362
00:28:05,600 --> 00:28:09,000
And they won't do that 
while their infants are nursing.

363
00:28:09,000 --> 00:28:12,600
♪♪

364
00:28:17,400 --> 00:28:20,833
[ Birds chittering ]

365
00:28:20,833 --> 00:28:24,900
Spur-fowl alarm calls 
prompt the cubs into hiding.

366
00:28:38,000 --> 00:28:40,533
The rogue can smell them now.

367
00:28:40,533 --> 00:28:42,466
He's close.

368
00:28:48,466 --> 00:28:51,400
He spotted movement 
among the branches.

369
00:28:55,733 --> 00:28:59,500
If the cubs stay hidden, 
they might be safe.

370
00:28:59,500 --> 00:29:09,566
♪♪

371
00:29:09,566 --> 00:29:17,566
♪♪

372
00:29:17,566 --> 00:29:22,300
But the arrival of a stranger 
arouses the curiosity of one.

373
00:29:22,300 --> 00:29:29,633
♪♪

374
00:29:29,633 --> 00:29:32,200
It's a terrible mistake.

375
00:29:32,200 --> 00:29:33,700
[ Lion growls, cub yelps ]

376
00:29:33,700 --> 00:29:38,200
♪♪

377
00:29:38,200 --> 00:29:40,500
Confused and frightened,

378
00:29:40,500 --> 00:29:44,300
the cubs can do nothing but 
wait for the rogue's next move.

379
00:29:58,600 --> 00:30:00,933
With tree climbing in his blood,

380
00:30:00,933 --> 00:30:05,866
one cub follows his instinct 
to move higher.

381
00:30:05,866 --> 00:30:08,933
But he's not strong enough 
to get up very far.

382
00:30:15,800 --> 00:30:18,000
[ Insects buzzing ]

383
00:30:31,633 --> 00:30:34,733
There's nothing for it 
now but to sit still

384
00:30:34,733 --> 00:30:37,800
and hope he goes unnoticed.

385
00:30:37,800 --> 00:30:39,900
[ Heart beating ]

386
00:30:39,900 --> 00:30:49,900
♪♪

387
00:30:49,900 --> 00:30:59,900
♪♪

388
00:30:59,900 --> 00:31:09,966
♪♪

389
00:31:09,966 --> 00:31:19,966
♪♪

390
00:31:19,966 --> 00:31:29,966
♪♪

391
00:31:29,966 --> 00:31:39,966
♪♪

392
00:31:39,966 --> 00:31:49,966
♪♪

393
00:31:49,966 --> 00:31:59,966
♪♪

394
00:31:59,966 --> 00:32:10,033
♪♪

395
00:32:10,033 --> 00:32:18,566
♪♪

396
00:32:18,566 --> 00:32:20,166
[ Branches snapping ]

397
00:32:21,966 --> 00:32:23,700
[ Lions growls ]

398
00:32:25,700 --> 00:32:27,600
[ Cub yelps ]

399
00:32:27,600 --> 00:32:29,800
[ Lion growls ]

400
00:32:29,800 --> 00:32:36,800
♪♪

401
00:32:36,800 --> 00:32:41,700
♪♪

402
00:32:41,700 --> 00:32:45,900
A mile away, Patch cannot 
have heard her cubs' cries.

403
00:32:48,766 --> 00:32:51,800
But perhaps she senses 
something is wrong.

404
00:32:51,800 --> 00:32:56,700
♪♪

405
00:32:56,700 --> 00:32:59,966
The rogue's 
brutal mission isn't over.

406
00:32:59,966 --> 00:33:03,300
He won't stop 
till all the cubs are dead.

407
00:33:03,300 --> 00:33:13,300
♪♪

408
00:33:13,300 --> 00:33:17,100
With stuffed bellies, 
the pride head back to the den.

409
00:33:17,100 --> 00:33:27,100
♪♪

410
00:33:27,100 --> 00:33:37,100
♪♪

411
00:33:37,100 --> 00:33:47,100
♪♪

412
00:33:47,100 --> 00:33:49,233
♪♪

413
00:33:49,233 --> 00:33:51,500
[ Lioness mewls ]

414
00:33:51,500 --> 00:33:54,066
Patch calls for her cubs.

415
00:33:54,066 --> 00:33:57,766
♪♪

416
00:33:57,766 --> 00:33:59,866
Normally, they'd come running.

417
00:34:02,300 --> 00:34:03,900
[ Lioness mewls ]

418
00:34:03,900 --> 00:34:07,000
Mwezi realizes 
something is wrong.

419
00:34:07,000 --> 00:34:15,266
♪♪

420
00:34:15,266 --> 00:34:16,766
[ Lioness mewls ]

421
00:34:16,766 --> 00:34:21,100
The rogue flees before he 
and his crime are discovered.

422
00:34:21,100 --> 00:34:23,366
♪♪

423
00:34:23,366 --> 00:34:25,966
[ Lioness mewls ]

424
00:34:25,966 --> 00:34:31,100
♪♪

425
00:34:31,100 --> 00:34:33,900
Still no reply to her calls.

426
00:34:37,566 --> 00:34:39,766
Until...

427
00:34:39,766 --> 00:34:42,600
He's terrified but alive.

428
00:34:45,400 --> 00:34:46,466
Another...

429
00:34:47,800 --> 00:34:49,400
[ Lioness mewls ]

430
00:34:49,400 --> 00:34:59,400
♪♪

431
00:34:59,400 --> 00:35:01,766
♪♪

432
00:35:01,766 --> 00:35:05,500
Soft moans reassure 
their traumatized cubs.

433
00:35:05,500 --> 00:35:09,000
[ Lioness mewls ]

434
00:35:09,000 --> 00:35:14,533
And one by one, more emerge 
from their hiding places.

435
00:35:14,533 --> 00:35:18,333
♪♪

436
00:35:18,333 --> 00:35:20,133
[ Lioness mewls ]

437
00:35:20,133 --> 00:35:27,766
♪♪

438
00:35:27,766 --> 00:35:29,766
The family reunites.

439
00:35:33,300 --> 00:35:37,833
In all, there are six survivors.

440
00:35:37,833 --> 00:35:41,366
Patch and Mwezi 
have lost one cub each.

441
00:35:41,366 --> 00:35:45,166
♪♪

442
00:35:45,166 --> 00:35:46,833
[ Lioness mewls ]

443
00:35:46,833 --> 00:35:50,200
But the outcome 
could have been so much worse.

444
00:35:54,400 --> 00:35:56,766
The pride will have to move.

445
00:35:58,833 --> 00:36:01,600
Their den is no longer safe.

446
00:36:04,866 --> 00:36:07,800
The rogue didn't finish the job.

447
00:36:16,000 --> 00:36:20,766
The weeks wear on and conditions 
in Katavi deteriorate.

448
00:36:20,766 --> 00:36:25,766
♪♪

449
00:36:25,766 --> 00:36:29,733
Distant storms bring 
not rain but fire,

450
00:36:29,733 --> 00:36:31,566
sparked by lightning.

451
00:36:31,566 --> 00:36:40,800
♪♪

452
00:36:40,800 --> 00:36:44,266
Hot winds whip ash 
into dust devils

453
00:36:44,266 --> 00:36:47,600
that haunt the land 
like malevolent spirits.

454
00:36:47,600 --> 00:36:57,600
♪♪

455
00:36:57,600 --> 00:37:02,133
♪♪

456
00:37:02,133 --> 00:37:04,266
It's hell on Earth.

457
00:37:04,266 --> 00:37:10,333
♪♪

458
00:37:10,333 --> 00:37:14,366
Corralled by swathes of charred, 
inedible grassland,

459
00:37:14,366 --> 00:37:17,766
the buffalo are forced 
to return to the plains.

460
00:37:17,766 --> 00:37:27,766
♪♪

461
00:37:27,766 --> 00:37:31,733
♪♪

462
00:37:31,733 --> 00:37:35,000
Only the hardiest 
can survive here on the dry,

463
00:37:35,000 --> 00:37:38,933
meager forage 
and last remnants of water.

464
00:37:38,933 --> 00:37:48,933
♪♪

465
00:37:48,933 --> 00:37:58,933
♪♪

466
00:37:58,933 --> 00:38:02,433
Arthur has survived 
against all odds.

467
00:38:05,766 --> 00:38:07,200
Two months ago,

468
00:38:07,200 --> 00:38:10,866
he abandoned the pride 
to follow the buffalo herds.

469
00:38:10,866 --> 00:38:18,766
♪♪

470
00:38:18,766 --> 00:38:22,700
[ Buffalo lows ]

471
00:38:22,700 --> 00:38:25,000
Emaciated and injured,

472
00:38:25,000 --> 00:38:27,966
his journey with them 
has taken its toll.

473
00:38:27,966 --> 00:38:37,966
♪♪

474
00:38:37,966 --> 00:38:44,233
♪♪

475
00:38:44,233 --> 00:38:48,333
♪♪

476
00:38:48,333 --> 00:38:52,300
He cannot tolerate the heat 
of these open plains.

477
00:38:52,300 --> 00:38:56,833
♪♪

478
00:38:56,833 --> 00:39:00,400
So he returns 
to his pride's territory...

479
00:39:00,400 --> 00:39:06,000
♪♪

480
00:39:06,000 --> 00:39:07,400
[ Lion mewls ]

481
00:39:07,400 --> 00:39:10,333
...in search of solace 
from his family.

482
00:39:10,333 --> 00:39:12,733
[ Mewling continues ]

483
00:39:12,733 --> 00:39:19,600
♪♪

484
00:39:19,600 --> 00:39:21,666
[ Mewling continues ]

485
00:39:26,233 --> 00:39:29,700
But his calls to the pride 
go unanswered.

486
00:39:42,533 --> 00:39:47,900
Arthur is not the only male 
searching for the pride.

487
00:39:47,900 --> 00:39:51,300
The cub killer 
is on the prowl, too.

488
00:39:51,300 --> 00:39:53,866
♪♪

489
00:39:53,866 --> 00:39:57,766
[ Birds squawking ]

490
00:39:57,766 --> 00:40:01,133
More than 10 miles south, 
Patch and Mwezi

491
00:40:01,133 --> 00:40:03,733
are beyond the reach 
of Arthur's roars.

492
00:40:05,966 --> 00:40:07,800
In these lean times,

493
00:40:07,800 --> 00:40:10,000
hungry hunters have no choice

494
00:40:10,000 --> 00:40:12,900
but to cash in 
on the success of others.

495
00:40:12,900 --> 00:40:15,333
♪♪

496
00:40:15,333 --> 00:40:17,466
[ Lioness growls, 
crocodile hisses ]

497
00:40:17,466 --> 00:40:21,233
But these stolen meals 
never last long.

498
00:40:21,233 --> 00:40:26,866
♪♪

499
00:40:26,866 --> 00:40:28,533
[ Hyenas yipping ]

500
00:40:28,533 --> 00:40:36,700
♪♪

501
00:40:36,700 --> 00:40:39,266
And the lions move on.

502
00:40:39,266 --> 00:40:49,266
♪♪

503
00:40:49,266 --> 00:40:57,733
♪♪

504
00:41:00,833 --> 00:41:05,233
Night offers the only relief 
from the crushing heat.

505
00:41:05,233 --> 00:41:07,133
[ Insects chirping ]

506
00:41:07,133 --> 00:41:08,966
And it's just cool enough

507
00:41:08,966 --> 00:41:12,100
for crocodiles to set out 
in search of water.

508
00:41:16,000 --> 00:41:20,633
The largest might weigh 
over 900 kilograms.

509
00:41:20,633 --> 00:41:30,633
♪♪

510
00:41:30,633 --> 00:41:32,733
♪♪

511
00:41:32,733 --> 00:41:37,100
They can only manage a few steps 
before needing to rest.

512
00:41:37,100 --> 00:41:47,100
♪♪

513
00:41:47,100 --> 00:41:54,766
♪♪

514
00:41:54,766 --> 00:41:56,500
The hippo mother and baby

515
00:41:56,500 --> 00:41:59,900
also use the cool of the night 
to travel.

516
00:41:59,900 --> 00:42:09,966
♪♪

517
00:42:09,966 --> 00:42:13,400
♪♪

518
00:42:13,400 --> 00:42:16,766
As water vanishes 
from Katavi's lands,

519
00:42:16,766 --> 00:42:19,500
so too do 
the hippo mother's choices.

520
00:42:21,600 --> 00:42:23,966
[ Hippos grunting ]

521
00:42:23,966 --> 00:42:29,200
♪♪

522
00:42:29,200 --> 00:42:33,566
Gone is the safety of her pod 
and the nursery herds.

523
00:42:33,566 --> 00:42:35,100
[ Hippos grunting ]

524
00:42:35,100 --> 00:42:40,533
♪♪

525
00:42:40,533 --> 00:42:45,833
Now her only option is one 
of the overcrowded mud wallows.

526
00:42:45,833 --> 00:42:48,000
[ Hippos bellowing ]

527
00:42:49,566 --> 00:42:52,666
Hardly a safe place for a baby.

528
00:42:52,666 --> 00:42:58,733
♪♪

529
00:42:58,733 --> 00:43:01,200
[ Hippos bellowing ]

530
00:43:01,200 --> 00:43:04,600
♪♪

531
00:43:04,600 --> 00:43:08,633
But she's not safe 
out of the pool, either.

532
00:43:08,633 --> 00:43:16,333
♪♪

533
00:43:16,333 --> 00:43:20,066
Hippos outweigh lions 10 to 1

534
00:43:20,066 --> 00:43:22,600
and are rarely targeted as prey.

535
00:43:22,600 --> 00:43:27,700
♪♪

536
00:43:27,700 --> 00:43:30,266
But everyone is fractious.

537
00:43:30,266 --> 00:43:35,000
♪♪

538
00:43:35,000 --> 00:43:38,566
And hungry lions 
can do crazy things.

539
00:43:38,566 --> 00:43:48,566
♪♪

540
00:43:48,566 --> 00:43:54,033
♪♪

541
00:43:54,033 --> 00:43:56,000
The mother makes her choice.

542
00:43:58,333 --> 00:44:01,466
Better the melee 
than the mouth of a predator.

543
00:44:03,666 --> 00:44:06,233
She's chosen her spot wisely.

544
00:44:06,233 --> 00:44:10,366
And old grandfather hippo has 
no objections to their company.

545
00:44:10,366 --> 00:44:12,566
[ Hippos grunting ]

546
00:44:12,566 --> 00:44:22,566
♪♪

547
00:44:22,566 --> 00:44:28,000
♪♪

548
00:44:28,000 --> 00:44:29,666
And his presence is enough

549
00:44:29,666 --> 00:44:32,500
to dissuade the lions 
from attacking.

550
00:44:32,500 --> 00:44:39,066
♪♪

551
00:44:39,066 --> 00:44:42,400
They need to look for 
other opportunities.

552
00:44:42,400 --> 00:44:46,566
♪♪

553
00:44:46,566 --> 00:44:48,566
[ Hippos grunting ]

554
00:44:48,566 --> 00:44:53,266
A mother with twins, 
almost unheard of in hippos.

555
00:44:53,266 --> 00:45:02,933
♪♪

556
00:45:02,933 --> 00:45:04,400
♪♪

557
00:45:04,400 --> 00:45:10,000
If they stay close to her, 
she'll be able to protect them.

558
00:45:10,000 --> 00:45:13,600
But it's hard not to panic when 
you're being stalked by a lion.

559
00:45:13,600 --> 00:45:21,333
♪♪

560
00:45:21,333 --> 00:45:23,766
♪♪

561
00:45:23,766 --> 00:45:25,866
Their mother is powerless.

562
00:45:25,866 --> 00:45:31,533
♪♪

563
00:45:31,533 --> 00:45:33,900
If she helps her stricken calf,

564
00:45:33,900 --> 00:45:36,033
she'll leave 
the other one exposed.

565
00:45:36,033 --> 00:45:40,933
♪♪

566
00:45:40,933 --> 00:45:43,700
They can only leave him 
to his fate.

567
00:45:43,700 --> 00:45:50,300
♪♪

568
00:45:50,300 --> 00:45:54,166
A small hippo can't feed 
the entire pride.

569
00:45:54,166 --> 00:46:01,200
♪♪

570
00:46:01,200 --> 00:46:04,733
As the weather cycle 
tightens its grip on the region,

571
00:46:04,733 --> 00:46:09,233
many are drawn to the dwindling 
Katuma River's last resources.

572
00:46:29,600 --> 00:46:31,466
When your stomach's rumbling,

573
00:46:31,466 --> 00:46:34,400
everything starts 
to look like prey.

574
00:46:34,400 --> 00:46:44,400
♪♪

575
00:46:44,400 --> 00:46:54,400
♪♪

576
00:46:54,400 --> 00:47:04,466
♪♪

577
00:47:04,466 --> 00:47:05,566
♪♪

578
00:47:05,566 --> 00:47:09,066
A 3-foot croc seems doable.

579
00:47:09,066 --> 00:47:14,366
♪♪

580
00:47:14,366 --> 00:47:15,566
[ Crocodile hisses ]

581
00:47:15,566 --> 00:47:17,533
[ Lioness growls ]

582
00:47:17,533 --> 00:47:22,766
♪♪

583
00:47:22,766 --> 00:47:24,766
[ Crocodile hisses, 
lioness grunts ]

584
00:47:24,766 --> 00:47:29,133
♪♪

585
00:47:29,133 --> 00:47:32,333
Grandma is 
a lot more intimidating.

586
00:47:35,066 --> 00:47:37,233
Pick on someone your own size.

587
00:47:37,233 --> 00:47:47,233
♪♪

588
00:47:47,233 --> 00:47:50,700
♪♪

589
00:47:50,700 --> 00:47:53,500
Maybe something 
with fewer teeth?

590
00:47:53,500 --> 00:48:03,566
♪♪

591
00:48:03,566 --> 00:48:13,566
♪♪

592
00:48:13,566 --> 00:48:16,433
♪♪

593
00:48:16,433 --> 00:48:20,833
Bellies full of fish, pelicans 
are slow to get airborne.

594
00:48:20,833 --> 00:48:22,833
[ Pelican screeches ]

595
00:48:22,833 --> 00:48:32,833
♪♪

596
00:48:32,833 --> 00:48:42,833
♪♪

597
00:48:42,833 --> 00:48:47,933
The young lion has 
found herself a bonanza.

598
00:48:47,933 --> 00:48:50,533
Juvenile birds, 
unaware of the consequences

599
00:48:50,533 --> 00:48:53,433
of overfeeding, are the target.

600
00:48:53,433 --> 00:48:56,000
♪♪

601
00:48:56,000 --> 00:48:58,500
[ Pelican squawks ]

602
00:48:58,500 --> 00:49:07,000
♪♪

603
00:49:07,000 --> 00:49:12,733
The frenzied lioness 
is creating a stockpile.

604
00:49:12,733 --> 00:49:15,866
She selects her next victim,

605
00:49:15,866 --> 00:49:19,566
grounded by a cargo 
of excess catfish.

606
00:49:23,333 --> 00:49:25,200
Target locked.

607
00:49:26,766 --> 00:49:28,566
[ Pelican squawks ]

608
00:49:28,566 --> 00:49:31,933
But this pelican's 
not giving up without a fight.

609
00:49:33,033 --> 00:49:34,866
[ Pelican hissing ]

610
00:49:44,166 --> 00:49:48,200
[ Pelican hissing ]

611
00:49:54,000 --> 00:49:55,500
[ Pelican hissing ]

612
00:50:02,900 --> 00:50:06,033
Time to call it a day 
and go back to the birds

613
00:50:06,033 --> 00:50:07,533
she caught earlier.

614
00:50:09,666 --> 00:50:12,366
If she can remember 
where she left them.

615
00:50:14,866 --> 00:50:18,833
But her stash 
has been discovered.

616
00:50:18,833 --> 00:50:23,300
Lions aren't 
the only opportunists here.

617
00:50:23,300 --> 00:50:25,466
The crocs aren't killing 
the pelicans,

618
00:50:25,466 --> 00:50:28,866
but they've got no qualms 
about scavenging the dead.

619
00:50:28,866 --> 00:50:32,766
♪♪

620
00:50:32,766 --> 00:50:35,966
A harsh lesson 
for the hungry lioness.

621
00:50:35,966 --> 00:50:42,166
♪♪

622
00:50:42,166 --> 00:50:45,866
The mud pools are becoming 
totally overpopulated.

623
00:50:45,866 --> 00:50:48,066
[ Pelicans squawking ]

624
00:50:48,066 --> 00:50:57,333
♪♪

625
00:50:57,333 --> 00:51:00,766
♪♪

626
00:51:00,766 --> 00:51:02,933
And under cover of sunset,

627
00:51:02,933 --> 00:51:07,300
the hippo mother and her calf 
once more slip away,

628
00:51:07,300 --> 00:51:10,166
to take their chances elsewhere.

629
00:51:10,166 --> 00:51:20,166
♪♪

630
00:51:20,166 --> 00:51:23,933
♪♪

631
00:51:23,933 --> 00:51:28,100
[ Thunder crashes ]

632
00:51:28,100 --> 00:51:33,033
Next time in Katavi, 
at long last, the rains return.

633
00:51:34,700 --> 00:51:38,033
Relief among all 
the resident tribes is palpable.

634
00:51:38,033 --> 00:51:47,433
♪♪

635
00:51:47,433 --> 00:51:51,033
Even the crocodiles, 
ancient survivors,

636
00:51:51,033 --> 00:51:52,633
were at breaking point.

637
00:51:52,633 --> 00:52:02,700
♪♪

638
00:52:02,700 --> 00:52:04,900
♪♪

639
00:52:04,900 --> 00:52:09,666
The water's return brings the 
promise of space to spread out.

640
00:52:09,666 --> 00:52:19,666
♪♪

641
00:52:19,666 --> 00:52:22,366
♪♪

642
00:52:22,366 --> 00:52:24,400
[ Thunder rumbles ]

643
00:52:24,400 --> 00:52:28,500
♪♪

644
00:52:28,500 --> 00:52:31,433
And the return of prey.

645
00:52:31,433 --> 00:52:34,133
[ Zebra braying, 
lioness growling ]

646
00:52:34,133 --> 00:52:36,533
[ Thunder crashes ]

647
00:52:36,533 --> 00:52:42,633
But as the waters keep rising, 
relief gives way to trepidation.

648
00:52:42,633 --> 00:52:46,833
Lion cubs are growing up 
in a flooded Katavi landscape

649
00:52:46,833 --> 00:52:49,266
that's never been seen before.

650
00:52:49,266 --> 00:52:54,433
♪♪

651
00:53:10,866 --> 00:53:20,800
♪♪

652
00:53:20,800 --> 00:53:30,800
♪♪

653
00:53:30,800 --> 00:53:40,800
♪♪

654
00:53:40,800 --> 00:53:47,900
♪♪

655
00:53:47,900 --> 00:53:51,200
To learn more about what you've 
seen on this "Nature" program,

656
00:53:51,200 --> 00:53:53,900
visit pbs.org.

657
00:53:53,900 --> 00:53:56,600
♪♪