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Support your local PBS station.

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♪

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- There's a story unfolding on
the west coast of Costa Rica--

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a story both ancient
and new...

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a tale of two creatures
from opposite worlds,

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each on a comeback from
their own devastating declines.

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One is the sea turtle,

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the global ocean traveler.

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♪

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The other, a magnificent cat--

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the top predators
in Central America.

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♪

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The return
of an endangered forest

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will bring them together

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in an uncommon clash
of land and sea--

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a surprising encounter
of a rare predator

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and a most unusual prey.

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♪

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How will their fates play out

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when they finally meet on
one special crescent of sand...

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called Jaguar Beach?

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♪

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♪

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♪

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- Off the shore
of Central America,

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in the shallows of the Pacific,
an ancient ritual is underway.

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♪

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After more than a decade at sea,

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an olive ridley sea turtle nears
the end of her long migration.

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Guided by the Earth's
magnetic field,

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she has navigated
thousands of kilometers,

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seeking out the very beach
where she was born.

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[ Waves crashing ]

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♪

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♪

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This secluded crescent of sand

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has long provided a refuge

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for one of the world's
most beloved creatures...

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and is home
to a wild coastal community.

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♪

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Shorebirds flock to its shallows
to feed...

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under the pterodactyl
silhouettes

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of magnificent frigatebirds.

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[ Birds calling ]

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American crocodiles slip out
of their swampy lagoons

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for an occasional
saltwater splash.

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[ Waves crashing ]

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Rising up from the beach
is one of the last habitats

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of its kind on Earth--

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a tropical forest
that's dry for half the year.

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Restored as a national park

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after it had been clearcut
for agriculture,

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its tangled woodlands sprawl

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nearly 500 square kilometers

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across Costa Rica's
mountainous west.

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♪

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The forest stretches
all the way to the ocean's edge,

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where its mangrove tendrils
filter freshwater from salt.

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♪

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♪

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The hardy trees provide a home
for over 250 species of birds.

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♪

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[ Bird squawking ]

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Yellow-naped parrots
nest in the heights.

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Orange-fronted parakeets
feast on its floral buffet.

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♪

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They share the canopy
with gymnastic spider monkeys...

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[ Monkey hooting ]
...and howlers.

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♪

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And in the understory,

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lumbering Baird's tapirs
forage for fallen fruit.

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[ Water trickling ]

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[ Waves crashing ]

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The unusual forest opens
onto a pristine strip of sand--

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one of only a few in the world

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where olive ridley sea turtles
nest en masse.

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For nearly two decades,
biologist Luis Fonseca

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has been trekking
to this remote alcove

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to monitor nesting sea turtles.

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But after five years
on the beach,

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he arrived one morning
to a shock--

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signs in the sand that he
and the turtles were not alone.

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[Speaking in Spanish]

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- The first tracks were
no aberration.

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He soon saw more evidence

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that one of the most formidable
predators in the Americas

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was making a comeback
in the dry forest.

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[Speaking in Spanish]

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- The return of an apex predator

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was bound to send ripples
through the ecosystem...

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[ Jaguar growling ]

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...so Luis decided to expand his
research to include the jaguars.

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Hoping to learn what impact
they would have on the turtles,

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he set up hundreds
of camera traps

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to capture their movements
and behavior.

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♪

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And then he waited...

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for the turtles
to emerge from the sea.

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♪

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For years at a time,
olive ridley sea turtles

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live a solitary, nomadic life
at sea.

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♪

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Their world is one
of mighty behemoths

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and lively schools of dolphins.

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[ Dolphins calling ]

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♪

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Then, every year or two,

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a primeval instinct
draws them home to these shores.

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Male turtles-- identifiable
by their longer tails--

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rarely return to land
after hatching.

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♪

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But during nesting season,

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these ancient mariners patrol
the shallows looking for mates.

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♪

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♪

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Seduction begins with
a tender but clunky embrace.

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The male uses long claws
on his front flippers

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to hook onto the female's shell.

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♪

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The courtship is quick,

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but the coupling can last
for several hours.

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♪

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The female does most
of the work,

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constantly pushing
to the surface

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so they both can breathe.

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♪

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♪

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For these two ocean wanderers
and their species,

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it's a fleeting
but critical connection.

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♪

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[ Waves crashing ]

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Weeks later,
the female drags herself

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from the comfort
of her weightless, watery world.

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[ Waves continue crashing ]

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With her 50-kilogram frame
and short flippers,

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she's far more graceful at sea
than ashore.

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But she's determined to find
a good spot for her nest.

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Then, she starts to carve
out a deep, protective cavity.

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As she digs,

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another mother-to-be
emerges from the surf,

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carrying her own precious cargo.

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[ Waves crashing ]

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In a few months,

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this sliver of beach will
draw thousands of sea turtles

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for a mass nesting event.

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But for now,

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she and the other female seem
to have it all to themselves.

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[ Waves continue crashing ]

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♪

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♪

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Within the forest, the area's
dominant male jaguar--

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named Alonzo by Luis--

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sets off on a midnight hunt.

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♪

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♪

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On the beach,
the first female turtle

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puts the final touches
on her nest.

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Her eggs are now hidden, but
she is still very much exposed.

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♪

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♪

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[ Jaguar growls ]

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♪

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No stalking, no pouncing.

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Just a quick and easy bite
to the back of the head.

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♪

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[ Jaguar snarling softly ]

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[ Waves crashing ]

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Back in the mangroves,
Alonzo settles down to his meal.

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[ Crunching ]

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His powerful jaws make quick
work of the turtle's hard shell.

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The jaguar has the most
powerful bite of any big cat.

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His jaws work just
as well on the shell

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as they do
on other animals' skulls.

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♪

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♪

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His tongue isn't just
for tasting.

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It's lined
with back-facing barbs

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that may aid
with stripping flesh from bone.

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♪

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With Alonzo otherwise occupied,

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the other nesting female is
still hard at work.

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[ Waves crashing ]

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♪

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♪

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Around a hundred eggs tumble
into the nest.

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Soft, leathery shells cushion
their fall.

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♪

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In her final maternal act,
she carefully conceals them.

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♪

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Then, she returns
to her ocean world,

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never to know what becomes
of her clutch.

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00:13:53,745 --> 00:13:56,748
[ Waves crashing ]

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Her eggs must now survive
the next 45 days--

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00:14:00,274 --> 00:14:02,580
hidden in the sand on a beach

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00:14:02,711 --> 00:14:05,583
where everyone is looking
for their next meal.

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00:14:05,757 --> 00:14:08,717
[ Waves continue crashing ]

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00:14:14,941 --> 00:14:16,768
Back in the mangroves,

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the turtle will feed Alonzo
for two days.

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For now, he has eaten his fill.

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But he's not the
only one dining tonight.

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♪

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As he takes a break,

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hungry scavengers move in
from the shadows.

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♪

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00:14:47,234 --> 00:14:49,323
The scent penetrates the forest.

207
00:14:49,410 --> 00:14:59,159
♪

208
00:14:59,246 --> 00:15:02,336
A resourceful opossum
is in luck.

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He's so taken by his windfall,

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he fails to notice that someone
has come back for seconds.

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00:15:07,602 --> 00:15:15,523
♪

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00:15:15,610 --> 00:15:23,531
♪

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00:15:23,618 --> 00:15:26,882
♪

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00:15:32,061 --> 00:15:34,324
The jaguar's
leftovers will nourish

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00:15:34,411 --> 00:15:36,457
a whole forest community.

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00:15:39,242 --> 00:15:42,245
But Luis is concerned
for the turtles,

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because olive ridleys are
in decline around the world.

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00:15:47,468 --> 00:15:50,471
How will the growing
jaguar population affect

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00:15:50,601 --> 00:15:52,864
the vulnerable turtles
staging their own comeback

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00:15:53,039 --> 00:15:54,954
here on this critical beach?

221
00:15:55,084 --> 00:15:57,739
[ Insects, birds chirping ]

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00:16:00,481 --> 00:16:03,136
Luis hopes his camera traps
can offer some clues.

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00:16:05,225 --> 00:16:06,313
[Speaking in Spanish]

224
00:16:19,152 --> 00:16:21,850
[ Waves crashing in distance ]

225
00:16:28,465 --> 00:16:31,338
[Speaking in Spanish]

226
00:16:37,866 --> 00:16:42,914
♪

227
00:16:43,045 --> 00:16:45,874
- The cameras reveal a secret
no one expected--

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00:16:45,961 --> 00:16:48,920
constant traffic of jaguars

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moving between
the dry forest and the beach.

230
00:16:53,969 --> 00:16:58,104
What was once a sanctuary
for Luis's nesting sea turtles

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00:16:58,191 --> 00:17:01,977
has become a favorite hunting
ground for a forest predator.

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00:17:02,064 --> 00:17:07,243
♪

233
00:17:07,374 --> 00:17:09,985
It's an amazing comeback story
for the big cats.

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00:17:10,072 --> 00:17:19,386
♪

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00:17:19,473 --> 00:17:21,997
During the 1950s and '60s,

236
00:17:22,128 --> 00:17:25,392
Costa Rica's northwestern coast
was stripped of its trees--

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00:17:25,566 --> 00:17:28,047
replaced by
a patchwork of cattle ranches.

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00:17:31,093 --> 00:17:34,140
Jaguars and other forest animals
all but disappeared.

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00:17:35,445 --> 00:17:37,752
[ Lowing ]

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00:17:37,882 --> 00:17:40,363
Then, in 1971,

241
00:17:40,537 --> 00:17:43,845
Costa Rica created
Santa Rosa National Park

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00:17:43,932 --> 00:17:46,717
and let nature rebuild
the forest.

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00:17:46,848 --> 00:17:54,334
♪

244
00:17:54,421 --> 00:18:02,429
♪

245
00:18:02,559 --> 00:18:05,823
New growth stretched
across the province,

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00:18:05,910 --> 00:18:09,349
eventually connecting the coast
to an inland jaguar habitat.

247
00:18:09,436 --> 00:18:12,439
♪

248
00:18:14,702 --> 00:18:16,921
One by one,

249
00:18:17,008 --> 00:18:19,272
the cats followed the lure
of the resurrected forest.

250
00:18:22,623 --> 00:18:24,973
They found their way
deeper into the park,

251
00:18:25,060 --> 00:18:27,323
expanding their territory...

252
00:18:27,410 --> 00:18:29,195
all the way to the beach.

253
00:18:29,325 --> 00:18:31,240
[ Waves crashing ]

254
00:18:31,371 --> 00:18:33,721
[Speaking in Spanish]

255
00:18:35,853 --> 00:18:39,292
- To monitor the effects
of this surge of predators,

256
00:18:39,422 --> 00:18:43,426
Luis assembled a small team
with a passion for jaguars...

257
00:18:43,557 --> 00:18:46,647
and the patience and fortitude
to work in extreme isolation.

258
00:18:51,260 --> 00:18:56,918
♪

259
00:18:57,005 --> 00:19:02,837
♪

260
00:19:02,924 --> 00:19:04,926
[Speaking in Spanish]

261
00:19:12,934 --> 00:19:15,502
[Speaking in Spanish]

262
00:19:36,436 --> 00:19:40,744
♪

263
00:19:40,831 --> 00:19:42,529
[Speaking in Spanish]

264
00:19:48,665 --> 00:19:51,494
- These elusive animals are
what drew Carolina Perez

265
00:19:51,625 --> 00:19:55,803
from her home in Italy
to this rugged coastal outpost,

266
00:19:55,933 --> 00:19:57,935
several hours' drive

267
00:19:58,066 --> 00:20:00,068
and a mountain hike
from the nearest town.

268
00:20:02,897 --> 00:20:05,465
With only a flashlight
and a bag of batteries,

269
00:20:05,552 --> 00:20:07,293
she monitors
the project's cameras.

270
00:20:07,380 --> 00:20:11,819
♪

271
00:20:11,949 --> 00:20:13,951
They have captured
some fascinating consequences

272
00:20:14,082 --> 00:20:16,345
of the jaguars' return.

273
00:20:16,476 --> 00:20:19,087
[Speaking in Spanish]

274
00:20:37,497 --> 00:20:45,809
♪

275
00:20:45,940 --> 00:20:48,638
- Even pumas--
top predators themselves--

276
00:20:48,725 --> 00:20:51,380
have altered their behavior.

277
00:20:51,554 --> 00:20:53,861
They've become more active
during the day

278
00:20:54,035 --> 00:20:57,081
to avoid the new rulers
of the night.

279
00:20:57,212 --> 00:20:58,953
And they're not
above jaguar leftovers

280
00:20:59,040 --> 00:21:01,303
if it means a free meal.

281
00:21:01,390 --> 00:21:02,348
[Speaking in Spanish]

282
00:21:18,451 --> 00:21:23,369
♪

283
00:21:23,456 --> 00:21:27,198
- The team's cameras are offering
other revelations as well.

284
00:21:27,373 --> 00:21:29,679
Normally, a single male jaguar

285
00:21:29,810 --> 00:21:33,074
needs 130 square kilometers
of territory to himself.

286
00:21:33,161 --> 00:21:39,689
♪

287
00:21:39,776 --> 00:21:44,433
Here, an abundance of turtles
keeps competition for food low,

288
00:21:44,607 --> 00:21:46,522
and these
intensely solitary cats live

289
00:21:46,609 --> 00:21:49,046
in much closer proximity.

290
00:21:49,177 --> 00:21:52,267
This gives Luis's cameras
an unprecedented view

291
00:21:52,398 --> 00:21:54,617
into their social lives.

292
00:21:54,748 --> 00:21:56,271
[Speaking in Spanish]

293
00:22:03,800 --> 00:22:07,978
- Luis has recorded
jaguars mating...

294
00:22:08,109 --> 00:22:11,373
wrestling...

295
00:22:11,504 --> 00:22:13,941
and even carting off
an ill-fated dolphin.

296
00:22:14,028 --> 00:22:18,989
♪

297
00:22:19,120 --> 00:22:24,560
♪

298
00:22:24,691 --> 00:22:26,954
The project identifies
the individual cats

299
00:22:27,084 --> 00:22:31,437
by their rosettes--
the spots on their fur.

300
00:22:31,524 --> 00:22:34,483
Each jaguar's pattern is as
unique as a human fingerprint.

301
00:22:34,614 --> 00:22:43,405
♪

302
00:22:43,536 --> 00:22:46,495
In the last 10 years,
Luis's team has documented

303
00:22:46,669 --> 00:22:50,673
and named around 40
individual jaguars.

304
00:22:50,804 --> 00:22:55,983
And they're capturing not just
behaviors, but personalities.

305
00:22:56,157 --> 00:22:59,160
Alonzo, the 12-year-old
dominant male,

306
00:22:59,247 --> 00:23:01,162
asserts his right
to any female--

307
00:23:01,292 --> 00:23:04,818
or food-- on the beach.

308
00:23:04,992 --> 00:23:09,344
Amanda, highly territorial, she
seems to be the dominant female.

309
00:23:09,431 --> 00:23:16,307
♪

310
00:23:16,438 --> 00:23:21,443
And Jorge, a young tough
on the cusp of adulthood.

311
00:23:21,530 --> 00:23:23,837
He's been gravitating
towards the females in heat.

312
00:23:23,924 --> 00:23:30,974
♪

313
00:23:31,105 --> 00:23:33,934
[ Waves crashing ]

314
00:23:36,589 --> 00:23:39,679
Tonight,
Jorge is on the prowl...

315
00:23:39,809 --> 00:23:42,029
heading to the beach
in search of an easy meal.

316
00:23:46,555 --> 00:23:49,384
And he's well-equipped
to spot one.

317
00:23:49,515 --> 00:23:51,342
His eyes are backed
with a mirror-like tissue

318
00:23:51,430 --> 00:23:54,171
that reflects light
into his retinas

319
00:23:54,302 --> 00:23:56,826
and gives all cats
their famous night vision.

320
00:23:56,913 --> 00:23:59,612
[ Waves continue crashing ]

321
00:24:04,965 --> 00:24:07,228
Tonight, he finds no turtles,

322
00:24:07,315 --> 00:24:09,099
but something
for other appetites.

323
00:24:11,624 --> 00:24:16,106
It's Amanda,
enjoying her own turtle catch.

324
00:24:16,237 --> 00:24:19,632
Jorge is eager to put his
adolescent prowess to the test.

325
00:24:27,596 --> 00:24:30,338
[ Waves continue crashing ]

326
00:24:37,737 --> 00:24:41,262
In this rare peek
into jaguar courtship,

327
00:24:41,392 --> 00:24:45,005
Jorge and Amanda take playful
breaks between couplings.

328
00:24:49,444 --> 00:24:52,186
[ Waves continue crashing ]

329
00:24:55,450 --> 00:24:59,019
♪

330
00:24:59,106 --> 00:25:01,630
But the interlude is cut short
when Alonzo arrives.

331
00:25:01,761 --> 00:25:10,639
♪

332
00:25:10,770 --> 00:25:13,468
[ Jaguars snarling ]

333
00:25:13,555 --> 00:25:19,256
♪

334
00:25:19,430 --> 00:25:21,389
Jorge beats a hasty retreat.

335
00:25:25,262 --> 00:25:27,308
Still outranked by Alonzo,

336
00:25:27,482 --> 00:25:29,832
he'll have to settle for
a fleeting tryst.

337
00:25:29,963 --> 00:25:32,705
[ Insects chirping ]

338
00:25:36,796 --> 00:25:40,234
For now, he heads back to
the forest to wait out the heat.

339
00:25:44,934 --> 00:25:47,110
Early April.

340
00:25:47,241 --> 00:25:49,896
At the peak of dry season,
the sun bakes the canopy.

341
00:25:53,682 --> 00:25:57,381
As streams dry up,
tensions rise.

342
00:25:57,556 --> 00:26:00,428
[ Birds singing,
monkeys screeching ]

343
00:26:04,606 --> 00:26:07,087
A trip to one of the few
remaining watering holes

344
00:26:07,217 --> 00:26:09,916
now means risking a run-in
with a thirsty predator.

345
00:26:17,140 --> 00:26:19,708
A family of white-faced
capuchin monkeys shelters

346
00:26:19,839 --> 00:26:21,014
high in the canopy.

347
00:26:24,147 --> 00:26:27,586
But the heat is unrelenting,
and while mom naps,

348
00:26:27,716 --> 00:26:30,458
a young capuchin takes his
brother on a daring mission...

349
00:26:33,461 --> 00:26:35,550
...to drink from a small seep
in the ground.

350
00:26:39,772 --> 00:26:43,253
[ Bees buzzing ]

351
00:26:43,384 --> 00:26:44,951
Bees have beaten them to it.

352
00:26:54,351 --> 00:26:58,007
He endures the thirsty swarm
for a few precious drops.

353
00:26:58,094 --> 00:27:00,793
[ Buzzing continues ]

354
00:27:06,320 --> 00:27:09,323
His brother isn't quite
convinced it's worth it.

355
00:27:14,458 --> 00:27:17,897
The sun beats down
across the park.

356
00:27:18,027 --> 00:27:21,640
From the forest to the beach,
life slows to a crawl.

357
00:27:26,427 --> 00:27:28,777
Even offshore,
the coastal breeze offers

358
00:27:28,908 --> 00:27:32,041
little relief to a colony
of magnificent frigate birds.

359
00:27:32,172 --> 00:27:35,001
[ Birds calling ]

360
00:27:38,787 --> 00:27:41,747
A young mom-to-be
languishes in the heat,

361
00:27:41,877 --> 00:27:44,532
shielding her single egg
from the relentless sun.

362
00:27:52,322 --> 00:27:55,108
She'll remain on the nest
for the next eight weeks,

363
00:27:55,238 --> 00:27:59,025
leaving only for brief spells
to find food and water.

364
00:27:59,112 --> 00:28:01,854
[ Birds continue calling ]

365
00:28:13,300 --> 00:28:16,042
[ Insects chirping ]

366
00:28:17,739 --> 00:28:20,916
♪

367
00:28:21,047 --> 00:28:24,311
Inside the forest, Amanda
is also looking for water.

368
00:28:24,398 --> 00:28:31,622
♪

369
00:28:31,753 --> 00:28:34,800
But Luis's cameras
catch someone else on the hunt.

370
00:28:34,887 --> 00:28:40,806
♪

371
00:28:40,980 --> 00:28:47,464
♪

372
00:28:47,551 --> 00:28:50,990
Jorge is more interested in
a private moment than a drink.

373
00:28:51,077 --> 00:28:58,084
♪

374
00:28:58,214 --> 00:29:00,826
[ Jaguars snarling softly ]

375
00:29:00,913 --> 00:29:08,268
♪

376
00:29:08,355 --> 00:29:11,532
Amanda puts on a half-hearted
show of resistance.

377
00:29:11,619 --> 00:29:15,841
♪

378
00:29:15,971 --> 00:29:18,757
[ Jaguar whines ]

379
00:29:21,368 --> 00:29:23,762
The coupling takes
less than a minute.

380
00:29:23,892 --> 00:29:27,548
Fast work, but jaguars
can mate dozens of times a day.

381
00:29:27,635 --> 00:29:36,383
♪

382
00:29:36,470 --> 00:29:45,522
♪

383
00:29:45,653 --> 00:29:48,569
In between mating,
the couple takes a stroll.

384
00:29:48,656 --> 00:29:56,142
♪

385
00:30:00,624 --> 00:30:02,844
Using scent glands
in his cheeks,

386
00:30:02,975 --> 00:30:05,978
Jorge lays his claim
to this swath of forest.

387
00:30:06,065 --> 00:30:08,807
[ Jaguar growling softly ]

388
00:30:17,424 --> 00:30:20,688
It seems the young upstart has
stepped out of Alonzo's shadow.

389
00:30:23,299 --> 00:30:27,913
[ Thunder booming ]

390
00:30:28,000 --> 00:30:31,917
♪

391
00:30:32,047 --> 00:30:35,572
Late May--

392
00:30:35,703 --> 00:30:38,924
the beginning of the wet season
in the dry forest.

393
00:30:39,011 --> 00:30:46,366
♪

394
00:30:46,453 --> 00:30:49,630
A meter of rain falls in
just the first three weeks.

395
00:30:51,545 --> 00:30:55,070
[ Thunder booms ]

396
00:30:55,157 --> 00:30:57,464
The forest springs to life.

397
00:30:57,551 --> 00:31:03,862
♪

398
00:31:03,992 --> 00:31:10,433
♪

399
00:31:10,520 --> 00:31:12,131
In the next five months,

400
00:31:12,305 --> 00:31:14,829
over 90% of the year's rain
will fall.

401
00:31:14,916 --> 00:31:19,355
♪

402
00:31:19,529 --> 00:31:22,489
Long-dry riverbeds
begin to flow--

403
00:31:22,663 --> 00:31:24,839
a wave of relief
for the parched forest.

404
00:31:24,926 --> 00:31:30,976
♪

405
00:31:31,063 --> 00:31:37,417
♪

406
00:31:37,547 --> 00:31:41,464
A slow greening
spreads across the hills,

407
00:31:41,595 --> 00:31:45,338
transforming Santa Rosa
into a coastal oasis.

408
00:31:45,425 --> 00:31:52,736
♪

409
00:31:52,867 --> 00:32:00,614
♪

410
00:32:00,744 --> 00:32:03,747
Capuchins feast on nuts
and ripe berries.

411
00:32:03,878 --> 00:32:09,362
♪

412
00:32:09,449 --> 00:32:18,153
♪

413
00:32:18,284 --> 00:32:20,025
A woodpecker chick gets
her food delivered

414
00:32:20,155 --> 00:32:21,200
right to the nest.

415
00:32:21,374 --> 00:32:27,510
♪

416
00:32:27,684 --> 00:32:30,339
And as the forest begins
to stir,

417
00:32:30,470 --> 00:32:34,691
the promise of new life
also arrives by sea.

418
00:32:34,822 --> 00:32:37,607
[ Waves crashing ]

419
00:32:40,480 --> 00:32:43,744
Late summer.

420
00:32:43,918 --> 00:32:46,399
August winds bring an air
of anticipation.

421
00:32:46,486 --> 00:32:53,406
♪

422
00:32:53,493 --> 00:32:56,670
Beyond the break,

423
00:32:56,757 --> 00:33:00,065
female olive ridley sea turtles
begin to assemble.

424
00:33:00,152 --> 00:33:06,071
♪

425
00:33:06,158 --> 00:33:12,425
♪

426
00:33:12,599 --> 00:33:14,601
They're one
of only two turtle species

427
00:33:14,731 --> 00:33:20,128
that gather in a synchronized
mass nesting event--

428
00:33:20,302 --> 00:33:23,784
an arribada--
Spanish for "arrival."

429
00:33:23,871 --> 00:33:31,357
♪

430
00:33:31,487 --> 00:33:34,795
The first few females
converge offshore.

431
00:33:34,925 --> 00:33:37,102
Soon, hundreds arrive.

432
00:33:37,189 --> 00:33:43,804
♪

433
00:33:43,891 --> 00:33:50,767
♪

434
00:33:50,898 --> 00:33:54,902
The shallows fill
with a constellation of turtles.

435
00:33:55,076 --> 00:33:57,774
They're all waiting for
a mysterious signal

436
00:33:57,861 --> 00:33:59,646
humans have yet to decipher...

437
00:33:59,733 --> 00:34:06,740
♪

438
00:34:06,870 --> 00:34:10,831
...a cue that the time is right
to head ashore.

439
00:34:10,918 --> 00:34:19,883
♪

440
00:34:20,014 --> 00:34:29,023
♪

441
00:34:29,110 --> 00:34:38,293
♪

442
00:34:38,467 --> 00:34:40,252
Over the next few months,

443
00:34:40,382 --> 00:34:43,994
thousands will pour forth
from the ocean--

444
00:34:44,082 --> 00:34:48,695
an armada of mothers, bringing
the next generation to the sand.

445
00:34:48,782 --> 00:34:57,356
♪

446
00:34:57,443 --> 00:35:06,321
♪

447
00:35:06,495 --> 00:35:08,018
It's one of the natural world's

448
00:35:08,106 --> 00:35:11,239
timeless
and spectacular sights...

449
00:35:11,370 --> 00:35:13,850
a ritual of renewal

450
00:35:13,981 --> 00:35:16,549
that may date back
to the age of the dinosaurs.

451
00:35:16,636 --> 00:35:24,948
♪

452
00:35:25,035 --> 00:35:27,908
[ Waves crashing ]

453
00:35:33,609 --> 00:35:37,135
The beach becomes
a sea of churning sand.

454
00:35:53,238 --> 00:35:55,109
In a single season,

455
00:35:55,240 --> 00:35:58,939
this small crescent--
just over a kilometer long--

456
00:35:59,069 --> 00:36:02,334
will be filled with
up to seven million eggs.

457
00:36:10,907 --> 00:36:12,909
But on Jaguar Beach,

458
00:36:13,040 --> 00:36:16,478
a successful hatch
is far from guaranteed.

459
00:36:21,048 --> 00:36:26,053
As the arribada subsides,
Carolina gets to work.

460
00:36:26,140 --> 00:36:30,362
[Speaking in Spanish]

461
00:36:37,934 --> 00:36:41,547
[Speaking in Spanish]

462
00:36:50,773 --> 00:36:54,255
[ Waves crashing ]

463
00:36:54,342 --> 00:36:55,474
[Speaking in Spanish]

464
00:37:05,353 --> 00:37:08,226
[ Waves continue crashing ]

465
00:37:12,752 --> 00:37:16,582
- These 45 days mark a dangerous
period for the baby turtles.

466
00:37:18,758 --> 00:37:20,803
As they incubate in the sand,

467
00:37:20,934 --> 00:37:23,719
relentless predators
stalk them from above.

468
00:37:23,850 --> 00:37:26,592
[ Birds squawking ]

469
00:37:29,116 --> 00:37:31,945
[ Waves crashing ]

470
00:37:36,210 --> 00:37:38,125
On most nesting beaches,

471
00:37:38,299 --> 00:37:40,867
wild dogs, foxes and coyotes--

472
00:37:40,997 --> 00:37:43,783
so-called mesopredators--

473
00:37:43,957 --> 00:37:46,438
plunder nests
for the protein-packed eggs.

474
00:37:56,535 --> 00:37:58,624
Using the tools
of shoestring science,

475
00:37:58,754 --> 00:38:00,408
Carolina is trying to track

476
00:38:00,582 --> 00:38:02,280
how many of these nests
will be raided.

477
00:38:06,371 --> 00:38:07,415
[Speaking in Spanish]

478
00:38:19,035 --> 00:38:21,777
[ Waves crashing ]

479
00:38:25,390 --> 00:38:28,480
- The bottles make it easy to see
if a nest has been disturbed.

480
00:38:33,267 --> 00:38:35,748
During recent arribadas,

481
00:38:35,835 --> 00:38:38,794
the bottles have helped them
document an encouraging trend

482
00:38:38,925 --> 00:38:41,667
that they believe is tied
to the return of the jaguars.

483
00:38:43,799 --> 00:38:45,453
[Speaking in Spanish]

484
00:38:57,857 --> 00:38:59,598
- It seems the jaguars
are keeping

485
00:38:59,685 --> 00:39:02,209
smaller predators
off the beach--

486
00:39:02,340 --> 00:39:04,864
inadvertently protecting
the turtles' eggs.

487
00:39:06,605 --> 00:39:08,911
As Carolina works,

488
00:39:09,085 --> 00:39:11,523
she's constantly aware of the
jaguars' presence in the dark.

489
00:39:12,785 --> 00:39:15,178
[Speaking in Spanish]

490
00:39:31,630 --> 00:39:33,371
[Speaking in Spanish]

491
00:39:46,645 --> 00:39:49,822
[ Waves crashing ]

492
00:40:01,834 --> 00:40:04,489
[ Waves continue crashing ]

493
00:40:11,104 --> 00:40:15,282
♪

494
00:40:15,369 --> 00:40:18,981
- Carolina isn't the only one
patrolling the night.

495
00:40:19,112 --> 00:40:22,550
Amanda has caught wind
of a late-night snack.

496
00:40:22,681 --> 00:40:25,379
[ Jaguar growling softly ]

497
00:40:25,466 --> 00:40:31,385
♪

498
00:40:31,472 --> 00:40:37,739
♪

499
00:40:37,913 --> 00:40:40,089
It's easy pickings
on Jaguar Beach...

500
00:40:40,220 --> 00:40:49,534
♪

501
00:40:49,621 --> 00:40:58,891
♪

502
00:40:59,065 --> 00:41:03,504
♪

503
00:41:03,591 --> 00:41:06,420
[ Insects chirping ]

504
00:41:18,301 --> 00:41:20,129
...and from
the size of her belly,

505
00:41:20,260 --> 00:41:22,175
it looks like Amanda
is eating for two.

506
00:41:25,961 --> 00:41:27,441
But Amanda
won't be the only mom

507
00:41:27,572 --> 00:41:30,270
whose success is tied
to the turtles.

508
00:41:30,357 --> 00:41:35,710
♪

509
00:41:35,797 --> 00:41:37,886
About a kilometer offshore,

510
00:41:38,017 --> 00:41:40,628
the frigatebird colony
is noisier than usual.

511
00:41:40,759 --> 00:41:43,501
[ Birds squawking ]

512
00:41:46,155 --> 00:41:48,418
Across their island outpost,

513
00:41:48,549 --> 00:41:50,943
hundreds of downy hatchlings
begin to stir.

514
00:41:51,030 --> 00:42:01,127
♪

515
00:42:01,257 --> 00:42:05,305
The first-time mother awakens to
her hungry and persistent chick.

516
00:42:05,392 --> 00:42:11,093
♪

517
00:42:11,180 --> 00:42:12,965
For their first five months,

518
00:42:13,052 --> 00:42:14,836
frigatebird chicks
depend entirely

519
00:42:14,967 --> 00:42:17,143
on their mothers for food.

520
00:42:17,230 --> 00:42:23,149
♪

521
00:42:23,236 --> 00:42:29,459
♪

522
00:42:29,590 --> 00:42:33,333
Chicks that don't get fed...
don't last long.

523
00:42:33,420 --> 00:42:39,208
♪

524
00:42:39,339 --> 00:42:45,301
♪

525
00:42:45,432 --> 00:42:47,260
Mom has to hunt...

526
00:42:47,390 --> 00:42:49,479
and fast.

527
00:42:49,567 --> 00:42:52,134
But she knows exactly
where to go.

528
00:42:52,265 --> 00:42:55,050
[ Birds calling ]

529
00:42:57,444 --> 00:43:00,229
[ Waves crashing ]

530
00:43:02,710 --> 00:43:05,321
The last month and a half have
been quiet on the beach--

531
00:43:05,408 --> 00:43:07,019
since the end of the arribada.

532
00:43:07,106 --> 00:43:12,938
♪

533
00:43:13,068 --> 00:43:16,202
But today,
something is different.

534
00:43:16,289 --> 00:43:24,863
♪

535
00:43:24,993 --> 00:43:27,692
The sand begins to shift.

536
00:43:27,779 --> 00:43:33,698
♪

537
00:43:33,785 --> 00:43:40,052
♪

538
00:43:40,139 --> 00:43:42,402
The beach erupts with new life.

539
00:43:42,489 --> 00:43:51,716
♪

540
00:43:51,890 --> 00:44:01,247
♪

541
00:44:01,334 --> 00:44:10,604
♪

542
00:44:10,778 --> 00:44:20,266
♪

543
00:44:20,396 --> 00:44:21,920
For the hatchlings,

544
00:44:22,050 --> 00:44:24,618
digging their way to the surface
is just the beginning.

545
00:44:24,705 --> 00:44:31,625
♪

546
00:44:31,799 --> 00:44:38,632
♪

547
00:44:38,719 --> 00:44:46,118
♪

548
00:44:46,205 --> 00:44:49,512
It's a long way to the water...

549
00:44:49,643 --> 00:44:51,123
and there's a gauntlet
to be run.

550
00:44:51,210 --> 00:44:58,260
♪

551
00:44:58,391 --> 00:45:01,220
For a creature
only five centimeters long,

552
00:45:01,350 --> 00:45:03,657
almost everything
is an obstacle.

553
00:45:03,744 --> 00:45:11,360
♪

554
00:45:11,491 --> 00:45:19,455
♪

555
00:45:19,542 --> 00:45:21,153
A fallen branch blocks the path.

556
00:45:21,240 --> 00:45:27,333
♪

557
00:45:27,463 --> 00:45:30,118
[ Waves crashing ]

558
00:45:30,292 --> 00:45:32,599
At last,
she's on the open beach.

559
00:45:34,993 --> 00:45:37,691
But here,
the dangers multiply.

560
00:45:37,778 --> 00:45:43,697
♪

561
00:45:43,784 --> 00:45:49,137
♪

562
00:45:49,268 --> 00:45:52,010
The young frigatebird mother
swoops in right on time.

563
00:45:52,097 --> 00:45:58,538
♪

564
00:45:58,625 --> 00:46:05,371
♪

565
00:46:05,501 --> 00:46:08,853
One by one, hatchlings
are carried off into the sky.

566
00:46:08,940 --> 00:46:15,685
♪

567
00:46:15,773 --> 00:46:19,037
A spiny-tailed iguana launches
an aggressive ground attack.

568
00:46:19,124 --> 00:46:26,435
♪

569
00:46:26,566 --> 00:46:34,052
♪

570
00:46:34,226 --> 00:46:36,097
Even the crustaceans close in.

571
00:46:38,796 --> 00:46:40,754
Ghost crabs are
surprisingly strong.

572
00:46:40,841 --> 00:46:49,763
♪

573
00:46:49,894 --> 00:46:52,418
Another hatchling looks
destined for a similar fate.

574
00:46:52,505 --> 00:46:59,599
♪

575
00:46:59,729 --> 00:47:03,255
With a survivor's determination,
she fends off the attack.

576
00:47:03,429 --> 00:47:08,608
♪

577
00:47:08,738 --> 00:47:10,610
She races for the ocean.

578
00:47:10,697 --> 00:47:18,748
♪

579
00:47:18,879 --> 00:47:20,446
One final close call...

580
00:47:20,533 --> 00:47:25,538
♪

581
00:47:25,668 --> 00:47:28,541
...and then...

582
00:47:28,671 --> 00:47:30,760
the finish line.

583
00:47:30,891 --> 00:47:33,676
[ Waves crashing ]

584
00:47:43,469 --> 00:47:47,342
She plunges
into a salty marine world,

585
00:47:47,473 --> 00:47:50,302
where she'll spend years
before returning to this beach.

586
00:47:50,389 --> 00:47:58,571
♪

587
00:47:58,701 --> 00:48:01,791
She'll swim out
past the rocky retreat,

588
00:48:01,922 --> 00:48:04,011
where the frigatebird mom
can now feed her chick

589
00:48:04,142 --> 00:48:05,665
a magnificent meal.

590
00:48:05,752 --> 00:48:11,758
♪

591
00:48:11,932 --> 00:48:14,152
Only one in a thousand
of these baby turtles

592
00:48:14,326 --> 00:48:15,893
will survive to adulthood.

593
00:48:16,023 --> 00:48:20,071
♪

594
00:48:20,201 --> 00:48:22,029
But Luis believes
these hatchlings got

595
00:48:22,160 --> 00:48:24,162
some surprising help

596
00:48:24,292 --> 00:48:27,556
from the forest predator
that takes their mothers

597
00:48:27,687 --> 00:48:29,254
but safeguards their nests.

598
00:48:30,646 --> 00:48:34,085
[Speaking in Spanish]

599
00:49:06,508 --> 00:49:09,990
- Luis's team has found
that jaguars kill less than 1%

600
00:49:10,164 --> 00:49:12,558
of the beach's nesting mothers.

601
00:49:12,732 --> 00:49:15,430
And by warding off threats
to the eggs,

602
00:49:15,561 --> 00:49:18,477
the predator has become
the protector.

603
00:49:21,654 --> 00:49:24,396
[ Birds calling ]

604
00:49:24,483 --> 00:49:30,489
♪

605
00:49:30,619 --> 00:49:32,273
On the island,

606
00:49:32,404 --> 00:49:34,145
the frigatebird chicks
continue to gorge

607
00:49:34,232 --> 00:49:35,929
on the hatchling bounty...

608
00:49:36,016 --> 00:49:45,547
♪

609
00:49:45,634 --> 00:49:47,680
...and in the forest,

610
00:49:47,810 --> 00:49:51,249
Amanda is caught on camera
doing something strange.

611
00:49:51,336 --> 00:49:55,775
♪

612
00:49:55,862 --> 00:49:57,733
She tears off
bite-sized portions

613
00:49:57,907 --> 00:49:59,605
from her latest turtle catch.

614
00:49:59,692 --> 00:50:07,830
♪

615
00:50:07,961 --> 00:50:16,622
♪

616
00:50:16,752 --> 00:50:21,453
A few days later, Luis's cameras
provide an adorable explanation.

617
00:50:21,540 --> 00:50:26,980
♪

618
00:50:27,154 --> 00:50:32,551
♪

619
00:50:32,681 --> 00:50:36,120
Amanda with her
curious new cubs.

620
00:50:36,207 --> 00:50:46,304
♪

621
00:50:46,434 --> 00:50:48,393
For the next two years,

622
00:50:48,567 --> 00:50:51,004
Amanda will teach her cubs
how to survive...

623
00:50:51,091 --> 00:50:56,009
♪

624
00:50:56,140 --> 00:50:58,316
...and guide them
through the dry forest

625
00:50:58,403 --> 00:51:01,493
that helped bring her species
back to this special beach.

626
00:51:01,580 --> 00:51:10,937
♪

627
00:51:11,068 --> 00:51:15,028
The rebirth
of Santa Rosa's forest

628
00:51:15,159 --> 00:51:18,379
and the resurrection
of its magnificent top predator

629
00:51:18,553 --> 00:51:20,860
has restored
an ancient relationship.

630
00:51:20,947 --> 00:51:26,083
♪

631
00:51:26,213 --> 00:51:31,784
♪

632
00:51:31,914 --> 00:51:34,526
The renewed partnership
has healed the connection

633
00:51:34,613 --> 00:51:36,528
between
vastly different worlds...

634
00:51:36,615 --> 00:51:42,882
♪

635
00:51:43,012 --> 00:51:45,624
...from the forest...

636
00:51:45,754 --> 00:51:49,062
to the air...

637
00:51:49,193 --> 00:51:50,542
to the deep ocean...

638
00:51:50,672 --> 00:51:54,415
[ Waves crashing ]

639
00:51:54,546 --> 00:51:56,983
...to the beach where the lives
of all their inhabitants

640
00:51:57,114 --> 00:51:58,202
intertwine...

641
00:51:58,289 --> 00:52:03,555
♪

642
00:52:03,729 --> 00:52:05,426
...where two creatures reunite

643
00:52:05,600 --> 00:52:08,516
as they were
for thousands of years...

644
00:52:08,647 --> 00:52:13,347
predator, prey--

645
00:52:13,478 --> 00:52:16,568
unlikely allies
in each other's survival...

646
00:52:16,655 --> 00:52:18,918
♪

647
00:52:21,486 --> 00:52:30,930
♪

648
00:52:31,017 --> 00:52:40,244
♪

649
00:52:40,418 --> 00:52:49,775
♪

650
00:52:49,862 --> 00:52:59,132
♪

651
00:52:59,306 --> 00:53:00,133
♪

652
00:53:00,220 --> 00:53:01,134
♪

653
00:53:01,221 --> 00:53:02,962
♪

654
00:53:03,049 --> 00:53:05,443
♪

655
00:53:05,530 --> 00:53:13,712
♪