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00:00:18,460 --> 00:00:20,540
Almost 200 years ago,

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00:00:20,540 --> 00:00:24,860
whilst walking these very paths
in the English countryside

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00:00:24,860 --> 00:00:28,140
and observing the banks and meadows
near his home,

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Charles Darwin developed

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his ground-breaking ideas
about evolution,

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casting a new light
on the natural world

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and opening our eyes
to its true wonder.

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Since then, we've explored
almost every part of the planet

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00:00:43,500 --> 00:00:47,580
and seen nature in its
astounding variety.

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00:00:47,580 --> 00:00:50,420
But there's still much to discover.

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00:00:53,380 --> 00:00:55,860
In this new series
of Planet Earth...

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..we travel to the most astonishing
wild places...

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..see mysterious creatures...

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..witness spectacular wonders...

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..and reveal breathtaking
animal dramas.

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The natural world
continues to surprise us.

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But since Darwin's time,
it has changed beyond recognition...

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..transformed by a powerful force.

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Us.

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We will see how animals are adapting
in extraordinary ways

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to survive the new challenges
they face.

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At this crucial time in our history,

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we must now look at the world
through a new lens.

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This is Planet Earth III.

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Tasmania, Shipstern's Bluff...

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..where two worlds collide.

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These waves have crossed more than
1,000 miles of open ocean...

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..building in strength.

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It's here that they meet
their explosive end.

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Coasts are dangerous
and dynamic frontiers.

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To succeed here,
life must adapt to constant change.

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South Africa's Robberg Peninsula.

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Thousands of Cape fur seals
gather here to breed.

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This pup was born
into a crowded world.

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But now, at nearly a year old,
he can escape to the water.

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He just has to get there.

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There is no question
as to where this pup belongs.

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In the water, he's fast and agile.

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And he needs to be.

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The rolling surf conceals
life-threatening dangers.

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A great white shark.

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This young pup
has had a very lucky escape.

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Here on Africa's southern coast,

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seals risk their lives
every time they set out to eat.

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Powerful ocean currents
attract huge shoals of fish.

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But in recent years,

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this stretch has attracted increased
numbers of great whites too.

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The great whites are shrewd hunters
and use whatever cover is available.

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This shark won't need to eat
for another few days.

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But he's not alone.

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These usually solitary hunters

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are gathering in
unprecedented numbers.

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A dozen at a time.

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The seals are nimble...

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..but great whites are patient...

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..and have explosive acceleration...

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..hitting top speed with just
five swipes of their tails.

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Cornered...

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..the seals keep close
to the jagged cliffs.

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They are trapped.

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But as the great whites
move in for the kill...

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..the seals do something
astonishing.

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Together...

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..they turn on their enemy.

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As more join, the mob grows...

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..in both number and confidence.

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The tables are turning.

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By sheer force of numbers...

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..these fur seals drive the world's
most notorious predator...

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..back out to sea.

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Here, animals are adapting
to new challenges

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in a rapidly changing world.

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In the Arctic...

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..monumental change
is a regular event.

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Summer.

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Visitors are arriving en masse...

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..attracted by the biggest
seasonal transformation

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on any coast on Earth.

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Over 300 billion tonnes
of ice are melting...

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..releasing nutrient-rich water.

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Extraordinary newcomers
appear from the depths.

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A sea angel.

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No bigger than your little finger.

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It's eaten little for months.

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Its empty stomach glows orange.

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And there are other hungry arrivals.

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A sea butterfly.

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A snail with wings.

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Both angel and butterfly are blind.

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But each monitors minute changes in
the water as they search for a meal.

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This angel has a devilish side.

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Its mouth parts invert

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to form a deadly trap
of tentacles...

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..from which there is
little chance of escape.

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With a stomach full of prey,
this angel has lost its glow...

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..but not its appetite.

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It feasts while it can.

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Both predator and prey
will soon return to the depths...

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..before the ice transforms
this coast once again.

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Namibia...

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..where desert lions
roam across vast territories.

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These desert cats are on
a never-ending search for food.

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And that has brought
these young sisters...

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..here.

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Africa's infamous Skeleton Coast.

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Following years of persecution,
Namibia's lions are now protected...

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..and their range
is expanding again.

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These are the first to be seen
on these shores for 40 years.

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By day, there is little
for them here.

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But at night,
it's a different story.

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Sea birds come here to roost

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in their thousands.

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These hungry sisters have never
seen an opportunity like this.

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But no cats,
certainly no desert cats,

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enjoy getting their paws wet.

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These roosting cormorants
are sitting ducks

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for hunters with good night vision.

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In theory.

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Birds are not a big cat's
usual prey,

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let alone sea birds.

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And these sisters
need to get their eye in.

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Catching flying prey
in the dark is not easy...

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..but these lions
have acquired the knack.

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Coasts can not only provide food...

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..they can also be a sanctuary.

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This female southern right whale
is nearing the end

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of a 5,000 mile journey
across open ocean.

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She's kept a steady course...

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..to a special place
she has known all her life.

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Peninsula Valdes, Argentina.

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In these calm, shallow waters...

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..her behaviour starts to change.

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She rolls and shifts her great body.

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Perhaps she's trying
to get comfortable.

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Other females are close by.

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Some have been coming here
for five decades...

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..seeking the shelter of this bay
at a key time in their lives.

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This whale is here...

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..to give birth.

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A new life begins.

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The calf is totally dependent
on its mother.

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She's producing as much
as 200 litres of milk a day.

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The strength she loses,
the calf gains.

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And it becomes more and more
independent and playful.

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In this nursery bay,
there are plenty of playmates.

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But a mother never lets her calf
stray too far...

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..and will always offer
a welcome embrace.

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The family keeps in constant contact
with whispered calls.

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New research has revealed

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that in shallow coastal waters,
their calls not only fade quickly,

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but are also concealed by the sound
of waves breaking on the shore...

152
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..so they won't attract
the attention of predators.

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00:26:49,260 --> 00:26:53,300
Not so long ago,
these whales faced a graver threat.

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They were hunted to near extinction.

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But 40 years ago,
commercial whaling was banned.

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Today, their population
is 12,000 strong...

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..and this bay now attracts
one of the largest gatherings

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of these whales anywhere on Earth.

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There are over a million miles
of coastline around the world.

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Together, they constitute the
most varied habitat on the planet.

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Here on Canada's west coast,

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some of the most powerful
of all ocean currents

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deliver a constant
supply of nutrients

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to the shores of countless islands.

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And those that live here
take full advantage.

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This is the aptly-named
wandering garter snake.

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He may seem out of place...

168
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..but he's here to eat.

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The water here is more than
ten degrees colder than the air.

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But that doesn't deter this intrepid
hunter from taking the plunge.

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Under the water,
there is an abundance of food...

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..if he can catch it.

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Snakes are cold-blooded,

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so he can't stay in these
chilly waters for long.

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Back in the sunshine,
he warms his head,

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perhaps sharpening his senses.

177
00:30:34,060 --> 00:30:36,100
And then, with a gulp of air...

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..he continues his hunt.

179
00:30:47,260 --> 00:30:49,300
It's thought that garter snakes

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can use their forked tongue
underwater as they do in air,

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smelling in stereo...

182
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..detecting prey wherever it hides.

183
00:31:15,460 --> 00:31:17,060
He's got something.

184
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A small fish.

185
00:31:25,340 --> 00:31:27,460
Now, he has to land it.

186
00:31:31,460 --> 00:31:33,100
Success.

187
00:31:38,260 --> 00:31:42,860
For those animals able to cross
the divide between land and sea,

188
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there are surprising rewards.

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Raja Ampat in Indonesia.

190
00:31:58,620 --> 00:32:01,700
Here, there's a greater
variety of animals

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than on any other coast on Earth.

192
00:32:10,300 --> 00:32:13,140
The corals are protected
by mangroves.

193
00:32:14,500 --> 00:32:20,300
Salt tolerant trees that prop
themselves on curving aerial roots.

194
00:32:33,460 --> 00:32:38,300
These fish have learned how to
catch prey from high in the trees.

195
00:32:44,620 --> 00:32:48,460
Archerfish use jets of water
like arrows.

196
00:32:53,060 --> 00:32:54,740
This pinpoint accuracy...

197
00:32:55,940 --> 00:32:58,580
..requires some
complex calculations.

198
00:33:00,940 --> 00:33:04,420
The hunter first estimates
the range of its target...

199
00:33:07,580 --> 00:33:10,940
..then loads with a precise
amount of water.

200
00:33:13,460 --> 00:33:17,460
Aiming, they allow
for the refraction and distortion

201
00:33:17,460 --> 00:33:20,180
created by the water's
moving surface.

202
00:33:24,300 --> 00:33:25,660
And then...

203
00:33:26,860 --> 00:33:28,380
..release...

204
00:33:30,860 --> 00:33:32,740
..an arrow of water.

205
00:33:35,220 --> 00:33:40,020
They can hit prey
up to two metres above them.

206
00:33:49,820 --> 00:33:52,340
But they're not born
with this skill.

207
00:33:54,260 --> 00:33:56,140
They have to learn it.

208
00:33:58,180 --> 00:34:01,220
And they do that by studying others.

209
00:34:06,500 --> 00:34:10,900
This youngster is watching
a master at work.

210
00:34:27,180 --> 00:34:29,980
It's time for the apprentice
to have a go.

211
00:34:32,500 --> 00:34:35,820
First, he must select a target.

212
00:34:38,860 --> 00:34:40,940
This seems rather ambitious.

213
00:34:50,060 --> 00:34:51,580
Missed.

214
00:34:53,100 --> 00:34:56,060
Others watch to learn
from his mistakes.

215
00:35:05,700 --> 00:35:07,060
Or...

216
00:35:09,460 --> 00:35:11,620
..to steal his prize.

217
00:35:48,660 --> 00:35:50,700
Enough is enough.

218
00:35:52,940 --> 00:35:55,620
There is one way
to beat the thieves.

219
00:36:00,500 --> 00:36:02,140
The archer himself...

220
00:36:03,780 --> 00:36:05,460
..becomes the arrow.

221
00:36:26,820 --> 00:36:31,060
Mangroves are unusually
stable coastal environments,

222
00:36:31,060 --> 00:36:35,020
where an archerfish can focus
on beating the competition.

223
00:36:54,980 --> 00:36:58,980
But on the exposed coast
of Mexico's Yucatan,

224
00:36:58,980 --> 00:37:01,060
life is precarious.

225
00:37:03,700 --> 00:37:06,860
Concentrated by
the tropical sunshine,

226
00:37:06,860 --> 00:37:11,980
the brine in these shallow lagoons
cannot be tolerated by most animals.

227
00:37:16,460 --> 00:37:20,140
And yet, these Caribbean flamingos

228
00:37:20,140 --> 00:37:23,500
have flown hundreds of miles
to gather here.

229
00:37:59,500 --> 00:38:03,820
These hypersaline waters
keep many predators at bay...

230
00:38:07,100 --> 00:38:09,660
..so it's here they choose to nest.

231
00:38:12,940 --> 00:38:16,060
There are more than
10,000 pairs here.

232
00:38:16,060 --> 00:38:19,460
It's the largest breeding colony
in North America.

233
00:38:33,380 --> 00:38:36,700
Nest mounds keep chicks
clear of the brine

234
00:38:36,700 --> 00:38:39,340
while they are still
at their most vulnerable.

235
00:39:15,980 --> 00:39:18,820
But this generation faces a problem.

236
00:39:27,180 --> 00:39:32,100
The storms that come each season
are arriving earlier every year.

237
00:39:36,340 --> 00:39:39,700
And the colony lies directly
in their path.

238
00:39:50,020 --> 00:39:53,580
Rising winds create a storm surge

239
00:39:53,580 --> 00:39:57,340
that overwhelms
the most exposed nests.

240
00:40:20,300 --> 00:40:21,820
And then...

241
00:40:22,900 --> 00:40:24,420
..it rains.

242
00:40:32,540 --> 00:40:36,580
The adults do what they can,
bailing out their nests.

243
00:40:43,860 --> 00:40:46,100
But they can only do so much.

244
00:41:02,900 --> 00:41:07,940
The storm passes,
but leaves devastation in its wake.

245
00:41:12,700 --> 00:41:15,100
Most nests are submerged.

246
00:41:31,540 --> 00:41:34,300
The chicks are soaked and cold...

247
00:41:36,020 --> 00:41:37,700
..and will soon perish...

248
00:41:38,940 --> 00:41:41,300
..unless they can
get out of the water.

249
00:41:55,420 --> 00:41:58,060
The adults are unable to help.

250
00:42:02,700 --> 00:42:05,140
A chick must save itself.

251
00:42:31,620 --> 00:42:36,220
Some years,
no chicks survive in this colony.

252
00:42:39,980 --> 00:42:42,660
Our coasts are vulnerable places.

253
00:42:44,500 --> 00:42:49,980
Increasingly so, as rising global
temperatures create bigger storms.

254
00:42:54,140 --> 00:42:57,340
The biggest are hurricanes.

255
00:43:01,260 --> 00:43:05,980
They form over warm tropical water,
building in strength at sea.

256
00:43:09,940 --> 00:43:14,060
But their full force
is unleashed on our coasts...

257
00:43:16,860 --> 00:43:21,940
..where 40% of the world's human
population have made their homes.

258
00:43:35,260 --> 00:43:37,220
In this changing world...

259
00:43:38,860 --> 00:43:41,300
..coasts are on the front line.

260
00:43:57,860 --> 00:43:59,460
Raine Island.

261
00:44:00,700 --> 00:44:03,780
One of the planet's most important
breeding sites

262
00:44:03,780 --> 00:44:07,020
for one particularly
precious species.

263
00:44:20,580 --> 00:44:22,300
The green turtle.

264
00:44:26,860 --> 00:44:29,460
On a few special nights each year,

265
00:44:29,460 --> 00:44:33,700
as many as 20,000 females
come ashore here.

266
00:44:36,500 --> 00:44:38,780
Their instinct to nest is strong...

267
00:44:41,220 --> 00:44:46,980
..and many haul themselves far
inland in search of nesting space.

268
00:44:49,740 --> 00:44:55,260
In a single night, they may lay
as many as two million eggs.

269
00:45:08,020 --> 00:45:09,460
Dawn.

270
00:45:12,540 --> 00:45:15,620
This exhausted female has nested,

271
00:45:15,620 --> 00:45:18,900
but now she faces
a long return journey

272
00:45:18,900 --> 00:45:21,220
through the dunes to the sea.

273
00:45:34,380 --> 00:45:36,220
As the sun rises...

274
00:45:38,540 --> 00:45:41,820
..she's at risk of being
baked alive.

275
00:45:49,700 --> 00:45:53,620
Every inch she travels is gruelling.

276
00:46:01,940 --> 00:46:06,060
And the ebbing tide
has exposed a rocky reef.

277
00:46:10,980 --> 00:46:13,900
It has already claimed many lives.

278
00:46:18,860 --> 00:46:23,180
Other females overcome
by heat and exhaustion.

279
00:46:33,140 --> 00:46:34,900
Her temperature is rising.

280
00:46:35,860 --> 00:46:37,900
She has to keep going.

281
00:47:02,900 --> 00:47:08,740
As many as 2,000 female turtles
may die here each year.

282
00:47:30,620 --> 00:47:33,180
But the coast is always changing.

283
00:47:43,020 --> 00:47:45,900
And the turning tide

284
00:47:45,900 --> 00:47:47,820
may yet save her.

285
00:48:16,540 --> 00:48:21,500
Half of all the green turtles
in the Pacific come here to nest,

286
00:48:21,500 --> 00:48:25,180
as they have done
for at least 1,000 years.

287
00:48:34,060 --> 00:48:36,300
But for how much longer?

288
00:48:42,220 --> 00:48:47,220
If sea levels rise as predicted,
within the next 30 years,

289
00:48:47,220 --> 00:48:51,580
Raine Island will disappear
beneath the waves.

290
00:48:59,460 --> 00:49:03,300
Coasts are dynamic,
dangerous frontiers...

291
00:49:05,500 --> 00:49:09,940
..and they are changing faster
than ever before in human history.

292
00:49:13,540 --> 00:49:16,100
Life is remarkably resilient...

293
00:49:17,500 --> 00:49:20,020
..and adapts to new challenges.

294
00:49:22,780 --> 00:49:27,340
But there is a limit
on how fast it can do so.

295
00:49:48,580 --> 00:49:50,340
As far as I know,

296
00:49:50,340 --> 00:49:55,340
I was one of the first people to
film on Raine Island, back in 1957.

297
00:49:57,980 --> 00:50:00,260
YOUNGER DAVID: After a fortnight
of travelling north,

298
00:50:00,260 --> 00:50:02,540
we at last sighted Raine Island.

299
00:50:03,820 --> 00:50:08,900
From the sea, it looked no more than
a low sandbank covered in scrub.

300
00:50:08,900 --> 00:50:11,540
But as we rowed ashore,

301
00:50:11,540 --> 00:50:15,620
we were deafened by the cries
of thousands of sea birds

302
00:50:15,620 --> 00:50:18,540
which hung above the island
like a black cloud.

303
00:50:21,860 --> 00:50:26,740
I was 31 and it was here
that I first met a green turtle.

304
00:50:28,300 --> 00:50:30,860
The turtles come up to lay at night,

305
00:50:30,860 --> 00:50:34,900
and after a night spent laying
maybe over 100 eggs,

306
00:50:34,900 --> 00:50:39,060
she's very weary and very anxious
to get back to the sea.

307
00:50:42,540 --> 00:50:44,500
Nearly 70 years later,

308
00:50:44,500 --> 00:50:47,780
the Planet Earth III team
are welcomed by people

309
00:50:47,780 --> 00:50:52,020
whose connection to the island goes
back very much further than mine.

310
00:50:52,020 --> 00:50:53,780
Welcome to Raine!

311
00:50:53,780 --> 00:50:55,860
The Wuthathi and Meriam people

312
00:50:55,860 --> 00:50:58,820
have been coming here
for several thousand years.

313
00:51:00,540 --> 00:51:02,900
Raine Island's a beautiful
and special place.

314
00:51:02,900 --> 00:51:05,420
Like, there's nowhere
else on the planet

315
00:51:05,420 --> 00:51:07,900
where you come and see
this much turtles.

316
00:51:07,900 --> 00:51:09,700
It's a wonder to see.

317
00:51:13,380 --> 00:51:16,660
Since I was there, it's been
discovered that Raine Island

318
00:51:16,660 --> 00:51:20,820
attracts more nesting green turtles
than anywhere else on the planet.

319
00:51:27,020 --> 00:51:28,660
There's so many, isn't there?

320
00:51:28,660 --> 00:51:31,540
As soon as you're up, you're like,
"Oh, there are a lot."

321
00:51:31,540 --> 00:51:34,420
And the crew soon meet
some other residents too.

322
00:51:35,660 --> 00:51:37,660
This is behind
the behind the scenes!

323
00:51:42,580 --> 00:51:43,940
See you, mate!

324
00:51:47,460 --> 00:51:49,420
The team are here to record

325
00:51:49,420 --> 00:51:52,460
the mother turtles'
perilous journeys back to the sea.

326
00:51:54,460 --> 00:51:56,300
Oh, God.

327
00:51:58,620 --> 00:52:01,220
Trapped turtles can often
free themselves

328
00:52:01,220 --> 00:52:03,420
with the help of the rising tide.

329
00:52:04,660 --> 00:52:07,900
Nearly. Just a bit more to
the right there. Yeah, there.

330
00:52:07,900 --> 00:52:11,980
But in this case, Keron
makes the decision to intervene.

331
00:52:13,220 --> 00:52:15,980
Ready? One, two, three.

332
00:52:15,980 --> 00:52:18,580
Yeah, any time we're here
we'll walk the beach.

333
00:52:18,580 --> 00:52:22,260
Any turtles that have no chance
of making it back to the ocean,

334
00:52:22,260 --> 00:52:27,380
if we can save them, we save them,
because every turtle is precious.

335
00:52:27,380 --> 00:52:29,500
At the time of my first visit,

336
00:52:29,500 --> 00:52:32,860
little was known to outsiders
about Raine Island.

337
00:52:32,860 --> 00:52:35,020
But for the last few decades,

338
00:52:35,020 --> 00:52:39,060
scientists have been working with
the Wuthathi and Meriam people

339
00:52:39,060 --> 00:52:42,060
to understand more
about this special place.

340
00:52:43,020 --> 00:52:46,340
Scientists have been coming to Raine
Island since about the mid '70s

341
00:52:46,340 --> 00:52:48,900
and over that time
they've been monitoring

342
00:52:48,900 --> 00:52:50,820
the nesting population here.

343
00:52:52,380 --> 00:52:54,420
This work involves long hours...

344
00:52:56,420 --> 00:52:58,300
98.7.

345
00:52:58,300 --> 00:53:00,780
..and a certain degree of patience.

346
00:53:02,860 --> 00:53:04,540
Oh!

347
00:53:04,540 --> 00:53:05,700
SHE LAUGHS

348
00:53:09,540 --> 00:53:13,100
We're going to be wearing half of
Raine Island by the end of tonight!

349
00:53:15,780 --> 00:53:19,260
Helping the year's first hatchlings
is a little easier.

350
00:53:20,660 --> 00:53:22,620
So we'll take these ones
down to the water's edge

351
00:53:22,620 --> 00:53:24,900
and so hopefully we'll see
these turtles back here,

352
00:53:24,900 --> 00:53:26,540
laying eggs in 30 years' time.

353
00:53:27,820 --> 00:53:30,420
With the help of this
dedicated team,

354
00:53:30,420 --> 00:53:34,100
Raine Island's turtles might
seem to have a good future.

355
00:53:38,980 --> 00:53:42,100
But research is revealing
a hidden threat.

356
00:53:46,780 --> 00:53:49,540
The direct effects
of climate change.

357
00:53:53,740 --> 00:53:57,340
Do you want to hold this against
the flat part of the data-logger?

358
00:53:57,340 --> 00:53:59,420
A developing turtle's sex

359
00:53:59,420 --> 00:54:02,380
is determined by the temperature
of its nest.

360
00:54:03,780 --> 00:54:07,340
Higher temperatures
produce female hatchlings.

361
00:54:09,180 --> 00:54:13,740
The temperature of the sand on Raine
Island is now at a record high.

362
00:54:15,020 --> 00:54:19,660
So 99% of the turtles
that hatch here are female.

363
00:54:21,100 --> 00:54:24,460
More alarmingly, we now know
this has been case

364
00:54:24,460 --> 00:54:26,940
for at least the last 20 years.

365
00:54:28,060 --> 00:54:29,700
You do the maths.

366
00:54:29,700 --> 00:54:34,060
All females, no males.
What's going to happen?

367
00:54:34,060 --> 00:54:36,300
There's going to be
a population crash

368
00:54:36,300 --> 00:54:37,940
and there'll be no more turtle.

369
00:54:41,380 --> 00:54:44,580
Work is under way to find solutions.

370
00:54:44,580 --> 00:54:46,660
But that's not their only problem.

371
00:54:48,260 --> 00:54:52,780
Not only are temperatures rising,
sea levels are too.

372
00:54:54,420 --> 00:54:56,980
Increasingly, high tides on Raine

373
00:54:56,980 --> 00:55:00,100
are flooding many of the nests
from below...

374
00:55:02,300 --> 00:55:05,940
..drowning the developing turtles
before they hatch.

375
00:55:07,700 --> 00:55:09,140
It's really upsetting.

376
00:55:09,140 --> 00:55:12,180
You'll dig down to check
to see success,

377
00:55:12,180 --> 00:55:14,460
and you get down to the nests

378
00:55:14,460 --> 00:55:16,740
and you're just pulling up
dead eggs.

379
00:55:18,420 --> 00:55:23,020
To try to stop this happening, they
have devised a heavy-duty solution.

380
00:55:27,700 --> 00:55:30,940
These machines have been
shipped hundreds of miles

381
00:55:30,940 --> 00:55:34,460
from the Australian mainland
to re-shape the beach.

382
00:55:37,260 --> 00:55:39,580
They have already shifted sand

383
00:55:39,580 --> 00:55:42,980
that would fill 16 Olympic-sized
swimming pools

384
00:55:42,980 --> 00:55:46,020
and doubled the number
of safe nesting sites.

385
00:55:48,500 --> 00:55:52,980
The hope is that this will ensure
that over five million more eggs

386
00:55:52,980 --> 00:55:54,980
will hatch in the next decade.

387
00:55:58,260 --> 00:56:03,580
But from then on, the future of
Raine Island looks very uncertain.

388
00:56:04,860 --> 00:56:08,100
At this stage, we think
that we have to about 2050

389
00:56:08,100 --> 00:56:11,140
until we start seeing massive
impacts of sea level rise.

390
00:56:12,100 --> 00:56:16,500
It's crazy to think that,
you know, the work that we do here,

391
00:56:16,500 --> 00:56:18,660
someone might not be doing this
in 30 years' time

392
00:56:18,660 --> 00:56:20,260
cos there's no island to do it on.

393
00:56:23,980 --> 00:56:29,340
What sort of world is it going to be
for my children and their children?

394
00:56:29,340 --> 00:56:31,180
Is there going to be anything for...

395
00:56:32,540 --> 00:56:34,220
..for them? Or is it...

396
00:56:35,660 --> 00:56:37,100
..all in vain?

397
00:56:42,260 --> 00:56:45,980
We'll always be here fighting
for Raine Island, for the turtles.

398
00:56:45,980 --> 00:56:49,820
But we can't do it alone and
we need government and big business

399
00:56:49,820 --> 00:56:53,820
to wake up and see what they're
doing to the planet and get real.

400
00:57:00,060 --> 00:57:03,260
This little fellow
is newly hatched from an egg

401
00:57:03,260 --> 00:57:05,540
which had been laid
a month or so earlier

402
00:57:05,540 --> 00:57:08,500
and he too is very anxious
to get down to the sea.

403
00:57:12,700 --> 00:57:15,380
Having at last successfully
reached the water,

404
00:57:15,380 --> 00:57:19,180
he's still got a great number of
hazards to face before he grows up.

405
00:57:21,580 --> 00:57:23,420
Little did I know then

406
00:57:23,420 --> 00:57:26,460
what hazards that little turtle
would have to face

407
00:57:26,460 --> 00:57:30,020
or the extraordinary lengths
to which people would go

408
00:57:30,020 --> 00:57:32,340
to protect it and its island.

409
00:57:33,860 --> 00:57:39,060
In the 66 years since my visit,
Raine Island has remained

410
00:57:39,060 --> 00:57:42,500
the most important green turtle
nesting site on the planet.

411
00:57:43,460 --> 00:57:47,300
The question is,
can it last another lifetime?

412
00:57:52,260 --> 00:57:53,740
Next time...

413
00:57:55,060 --> 00:57:57,940
..an extraordinary journey
through the ocean.

414
00:58:00,140 --> 00:58:03,300
The last unexplored
frontier on our planet...

415
00:58:07,340 --> 00:58:08,940
..where life has evolved...

416
00:58:10,260 --> 00:58:12,700
..in the most surprising ways.

417
00:58:18,020 --> 00:58:21,660
Habitat Explorer brings animals
and their habitats to life.

418
00:58:21,660 --> 00:58:25,340
Explore this free interactive
and make origami animals.

419
00:58:25,340 --> 00:58:29,220
Go to bbc.co.uk/planetearth3

420
00:58:29,220 --> 00:58:31,580
and follow the links
to the Open University.

421
00:58:31,580 --> 00:58:33,740
Or to order a free printed version,

422
00:58:33,740 --> 00:58:37,060
visit the website
or call the numbers on the screen.