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1
00:00:17,601 --> 00:00:19,601
Three days of digging.
2
00:00:19,704 --> 00:00:23,472
And this olive ridley
turtle is free,
3
00:00:26,143 --> 00:00:31,180
But not safe, until
she gets to the sea,
4
00:00:34,135 --> 00:00:36,869
Where early life evolved and.
5
00:00:36,937 --> 00:00:40,973
Where nearly 80% of
animals still live.
6
00:00:48,150 --> 00:00:51,834
Of all the hatchlings born this
year on the costa rican coast,
7
00:00:53,204 --> 00:00:56,538
Only 10% will make it.
8
00:01:18,120 --> 00:01:24,299
♪ ♪
9
00:01:57,501 --> 00:02:01,103
Now she's in her element.
10
00:02:03,607 --> 00:02:07,509
But her journey has just begun.
11
00:02:08,913 --> 00:02:12,181
In ten years' time, she will
return to these shores.
12
00:02:12,283 --> 00:02:14,700
To lay eggs of her own,
13
00:02:15,436 --> 00:02:18,270
If she survives.
14
00:02:24,778 --> 00:02:28,480
The ocean is a fluid
and unpredictable world,
15
00:02:30,267 --> 00:02:34,403
And all those that live
here are at its mercy.
16
00:02:52,940 --> 00:02:56,241
Our planet's oceans
cover 70% of its surface,
17
00:03:00,848 --> 00:03:05,801
And provide an incredible
99% of its habitable space.
18
00:03:07,338 --> 00:03:10,500
This may be an
alien world to us,
19
00:03:11,575 --> 00:03:15,110
But it's home to an
extraordinary range of animals,
20
00:03:21,168 --> 00:03:23,735
From the biggest,
21
00:03:23,837 --> 00:03:27,306
To the strangest
creatures in our world.
22
00:03:29,176 --> 00:03:31,910
Even for the most
marine adapted,
23
00:03:32,120 --> 00:03:35,470
Life isn't easy.
24
00:03:41,438 --> 00:03:45,730
Survival at sea is a
completely different game.
25
00:03:45,175 --> 00:03:48,310
To survival on land,
26
00:03:51,480 --> 00:03:54,733
Especially when the
rules keep changing.
27
00:04:10,717 --> 00:04:14,536
Where the atlantic
and indian oceans meet,
28
00:04:14,872 --> 00:04:19,410
New conflicts between
old foes are brewing.
29
00:04:23,747 --> 00:04:26,815
Rising sea temperatures
are pushing fish eastward.
30
00:04:26,917 --> 00:04:29,334
To cooler waters.
31
00:04:40,547 --> 00:04:43,932
Those that feed on
them have followed.
32
00:04:49,907 --> 00:04:52,908
Fur seals.
33
00:04:56,747 --> 00:05:00,148
Their new home is treacherous,
34
00:05:01,635 --> 00:05:04,736
And it's not just the waves,
35
00:05:06,974 --> 00:05:09,841
It's what lies beneath.
36
00:05:25,943 --> 00:05:29,611
Not the best place
to learn to swim,
37
00:05:32,783 --> 00:05:37,690
But the perfect hunting ground
for a great white shark.
38
00:05:55,973 --> 00:06:00,420
This pup has strayed
too close to the edge.
39
00:06:09,703 --> 00:06:13,372
Now it's out of its depth.
40
00:06:28,539 --> 00:06:31,740
A pup can outmaneuver a shark,
41
00:06:37,214 --> 00:06:40,182
But only for so long.
42
00:06:56,483 --> 00:07:00,735
Half of all such encounters
end badly for seals.
43
00:07:08,846 --> 00:07:12,948
The adults must deal with
this persistent menace,
44
00:07:14,902 --> 00:07:17,602
But how?
45
00:07:25,412 --> 00:07:29,347
It takes one brave
seal to lead the way.
46
00:07:49,690 --> 00:07:51,703
Others join.
47
00:07:54,740 --> 00:07:58,710
Soon they are a mob,
harassing the intruder.
48
00:08:03,250 --> 00:08:07,469
It's a risky strategy;
Sharks can turn on a dime.
49
00:08:30,677 --> 00:08:34,713
Together they have
overcome a giant.
50
00:08:41,738 --> 00:08:46,174
The pups are safe,
at least for now.
51
00:08:58,405 --> 00:09:02,274
Shallow continental seas are
the most productive waters in.
52
00:09:02,376 --> 00:09:04,709
Our oceans.
53
00:09:06,580 --> 00:09:09,581
They are also some of
the most competitive.
54
00:09:19,643 --> 00:09:23,812
During winter, these freezing
fjords are the stage for one.
55
00:09:23,914 --> 00:09:28,133
Of the biggest wildlife
spectacles on the planet.
56
00:09:34,274 --> 00:09:38,610
This orca pod
comes here every year.
57
00:09:39,913 --> 00:09:42,747
They're led by a matriarch;
58
00:09:43,850 --> 00:09:47,402
She could be 70 years old.
59
00:09:51,408 --> 00:09:54,476
For a pod that
specialize in hunting fish,
60
00:09:54,578 --> 00:09:57,946
This is an unmissable event.
61
00:10:02,869 --> 00:10:04,369
Herring.
62
00:10:04,471 --> 00:10:07,138
Billions of them.
63
00:10:07,240 --> 00:10:11,343
More fish here than
people on the planet.
64
00:10:19,403 --> 00:10:21,236
But the bigger the shoal,
65
00:10:21,338 --> 00:10:24,939
The harder it is to
single out a target.
66
00:10:28,845 --> 00:10:32,347
The orca need to come at the
problem from another angle.
67
00:10:43,243 --> 00:10:47,746
Coordinating their attack,
they divide and conquer.
68
00:10:51,401 --> 00:10:55,370
Herders work to split the shoal.
69
00:11:00,143 --> 00:11:03,445
Then in come the big hitters,
70
00:11:03,947 --> 00:11:07,248
Slamming their tails,
creating a shockwave,
71
00:11:08,635 --> 00:11:12,270
Stunning up to 30
fish with each blow.
72
00:11:23,116 --> 00:11:25,100
They must work quickly.
73
00:11:25,202 --> 00:11:27,869
They're not the
only hunters here.
74
00:11:33,310 --> 00:11:38,246
Humpbacks, six times
the weight of an orca.
75
00:11:43,637 --> 00:11:48,440
They can devour more than 200
pounds of herring in one gulp.
76
00:11:59,603 --> 00:12:03,338
The orca simply can't compete.
77
00:12:06,877 --> 00:12:10,512
But they can switch tactic,
78
00:12:12,150 --> 00:12:14,599
As long as they're
prepared to face down.
79
00:12:14,701 --> 00:12:17,635
The most dangerous
predator in the ocean.
80
00:12:25,512 --> 00:12:27,879
In the ocean,
where there is food,
81
00:12:27,981 --> 00:12:31,232
There's usually a fight.
82
00:12:34,438 --> 00:12:38,273
Off the fjords of norway,
these orca are about to take.
83
00:12:38,375 --> 00:12:41,543
On the most aggressive
ocean hunters of all,
84
00:12:47,284 --> 00:12:49,467
Us.
85
00:12:56,610 --> 00:12:58,877
Fishing boats like
this can scoop up
86
00:12:58,979 --> 00:13:02,447
800 tons of herring a day,
87
00:13:03,850 --> 00:13:07,168
Out-fishing orca and
humpbacks combined.
88
00:13:10,273 --> 00:13:13,740
Desperation has
forced these orca.
89
00:13:13,176 --> 00:13:16,644
To turn this new obstacle
into opportunity,
90
00:13:26,706 --> 00:13:28,873
Picking off the fish
that slip through.
91
00:13:28,975 --> 00:13:32,210
Their competitors' nets.
92
00:13:42,205 --> 00:13:46,174
Recently imposed quotas ensure
there are enough herring for.
93
00:13:46,276 --> 00:13:49,711
Humans and whales.
94
00:13:55,535 --> 00:13:59,204
But the global
picture isn't so bright.
95
00:14:08,448 --> 00:14:13,340
We are consuming more
fish than ever before.
96
00:14:14,571 --> 00:14:18,940
Reducing many stocks to
little more than scales.
97
00:14:25,949 --> 00:14:30,335
Unbalanced oceans
are open to invasion,
98
00:14:32,500 --> 00:14:35,373
By strange life forms.
99
00:14:50,730 --> 00:14:54,175
They start life as
pinhead sized polyps,
100
00:14:57,681 --> 00:15:03,134
But what they lack in size
they make up for in numbers.
101
00:15:23,673 --> 00:15:27,842
Gorging on tiny plankton,
102
00:15:28,945 --> 00:15:34,832
They grow, mutate and multiply.
103
00:15:37,504 --> 00:15:40,638
Into an army of clones.
104
00:15:44,511 --> 00:15:47,779
Now each polyp becomes
a production line.
105
00:15:48,648 --> 00:15:51,666
With one purpose.
106
00:16:13,239 --> 00:16:17,375
Creating new jellyfish.
107
00:16:23,149 --> 00:16:26,801
Bodies that are 95% water.
108
00:16:26,903 --> 00:16:31,500
Can easily grow and grow,
109
00:16:33,410 --> 00:16:37,545
Until they are monsters.
110
00:16:42,569 --> 00:16:46,704
No bones, no
blood or even brains,
111
00:16:47,407 --> 00:16:51,809
But perfectly suited to
today's transforming seas.
112
00:16:55,982 --> 00:16:58,933
Resistant to
increasing temperature,
113
00:16:59,350 --> 00:17:02,370
Decreasing oxygen,
changing salinity,
114
00:17:02,472 --> 00:17:06,974
Rising acidity, even
plastic pollution.
115
00:17:10,980 --> 00:17:14,565
When a jellyfish
swarm takes over,
116
00:17:14,667 --> 00:17:18,836
Some ecosystems
never fully recover.
117
00:17:25,478 --> 00:17:30,581
Our impact also extends to the
biggest marine habitat of all.
118
00:17:36,372 --> 00:17:40,700
The open ocean.
119
00:17:50,303 --> 00:17:53,404
It covers more
than half the globe,
120
00:17:54,140 --> 00:17:57,375
But food here is
increasingly scarce.
121
00:18:00,847 --> 00:18:05,733
Yet one animal perseveres,
despite needing.
122
00:18:05,835 --> 00:18:10,371
One and a half million
calories every day.
123
00:18:20,450 --> 00:18:25,703
The blue whale, the largest
animal ever to have lived.
124
00:18:29,209 --> 00:18:31,943
She's as long as an 18 wheeler,
125
00:18:32,450 --> 00:18:35,113
With a heart as big as a car.
126
00:18:35,215 --> 00:18:38,966
And a tongue that weighs
as much as an elephant.
127
00:18:51,470 --> 00:18:54,599
Just this year, she's
swum far enough to have.
128
00:18:54,701 --> 00:18:58,736
Circumnavigated the globe.
129
00:18:59,439 --> 00:19:03,407
All in search of this.
130
00:19:06,179 --> 00:19:08,646
Krill.
131
00:19:08,748 --> 00:19:10,781
One of the most
important species.
132
00:19:10,884 --> 00:19:13,901
In the marine food chain.
133
00:19:24,414 --> 00:19:28,966
With each monumental gulp,
she takes in enough water and.
134
00:19:29,680 --> 00:19:33,104
Krill to fill a school bus.
135
00:19:35,608 --> 00:19:38,843
Her tongue forces the water
back out through the bristly.
136
00:19:38,945 --> 00:19:43,881
Plates on her jaw, trapping
up to two million krill.
137
00:19:53,276 --> 00:19:57,778
Blue whales were hunted to
the brink of extinction.
138
00:19:59,480 --> 00:20:01,465
Although they're
still endangered,
139
00:20:01,568 --> 00:20:04,468
Since a ban on
whaling in the 1960s,
140
00:20:04,571 --> 00:20:08,105
Their numbers have
increased worldwide,
141
00:20:09,943 --> 00:20:12,977
And here, off the
coast of california,
142
00:20:13,790 --> 00:20:16,614
They have almost
completely recovered.
143
00:20:23,106 --> 00:20:27,942
The vast, open ocean
can be a lonely place.
144
00:20:38,137 --> 00:20:43,608
This green turtle has spent
30 years out here on her own.
145
00:20:45,245 --> 00:20:50,281
Somehow, she's found enough
food to survive and grow.
146
00:20:57,440 --> 00:21:01,175
Now she's ready to return home,
147
00:21:03,513 --> 00:21:07,448
But it will be a
dangerous journey.
148
00:21:24,350 --> 00:21:28,202
It's the breeding season,
and hundreds of turtles are.
149
00:21:28,304 --> 00:21:32,730
Gathering to try
and win a partner.
150
00:21:35,511 --> 00:21:40,448
Males mate about four
times as often as females,
151
00:21:41,350 --> 00:21:45,169
So she attracts a
lot of interest.
152
00:21:59,669 --> 00:22:03,204
This male is quick to latch on.
153
00:22:07,760 --> 00:22:10,578
But the others won't
give up without a fight.
154
00:22:20,506 --> 00:22:22,740
Off the coast of malaysia,
155
00:22:22,842 --> 00:22:26,544
It's green turtle
breeding season.
156
00:22:27,680 --> 00:22:30,848
This female has found a mate,
157
00:22:31,834 --> 00:22:35,970
But other males are intent
on splitting the pair.
158
00:22:45,848 --> 00:22:48,933
Targeting the male's soft flesh,
159
00:22:49,350 --> 00:22:52,200
They try to force him to let go.
160
00:23:01,800 --> 00:23:04,982
But the female has
the most to lose.
161
00:23:06,402 --> 00:23:10,704
The fiercer the pursuit,
the more oxygen she burns.
162
00:23:12,942 --> 00:23:16,544
A stressed turtle
can drown in minutes.
163
00:23:31,411 --> 00:23:35,246
She's desperate to reach
the surface and breathe,
164
00:23:35,681 --> 00:23:39,900
But one challenger
just won't give up.
165
00:24:09,482 --> 00:24:12,600
The female is running on empty.
166
00:24:23,146 --> 00:24:27,810
Finally, the intruder
backs off just long enough.
167
00:24:55,811 --> 00:25:00,381
She's safe, but in just a few
weeks she will face the final.
168
00:25:00,550 --> 00:25:04,835
Hurdle in her epic
struggle to continue her line.
169
00:25:14,547 --> 00:25:18,115
Where the tropical sun
meets the shallow seas,
170
00:25:18,184 --> 00:25:21,969
You find the busiest
ocean habitat of all:
171
00:25:24,273 --> 00:25:27,700
Coral reefs.
172
00:25:29,712 --> 00:25:33,380
They account for less than
a thousandth of the sea floor,
173
00:25:35,201 --> 00:25:40,400
But are home to a
quarter of all marine species.
174
00:25:52,868 --> 00:25:56,470
In this crowded
and dangerous place,
175
00:25:56,939 --> 00:26:00,107
Finding shelter is essential.
176
00:26:09,235 --> 00:26:12,903
Some hide in the coral maze,
177
00:26:14,340 --> 00:26:18,275
Others seek sanctuary
in the shoal.
178
00:26:25,401 --> 00:26:29,270
But neither tactic
guarantees safety.
179
00:26:35,244 --> 00:26:39,580
Lionfish are one of the most
efficient killers on the reef.
180
00:27:09,178 --> 00:27:12,790
Yet there is a far
greater threat facing.
181
00:27:12,181 --> 00:27:15,466
All those who live here.
182
00:27:19,739 --> 00:27:24,808
Our seas have been steadily
warming for the past 75 years.
183
00:27:31,170 --> 00:27:35,502
Now it's happening
faster than ever before.
184
00:27:41,477 --> 00:27:46,447
It's having a profound impact
on life throughout our oceans.
185
00:27:49,969 --> 00:27:54,238
Coral reefs are
particularly vulnerable.
186
00:27:55,141 --> 00:27:59,900
Just a 3 degree temperature
rise is too much for coral.
187
00:28:03,820 --> 00:28:06,900
It forces them to expel
the algae that feed them.
188
00:28:07,269 --> 00:28:10,404
And give them their color.
189
00:28:13,409 --> 00:28:16,110
This bleaching is the
first step towards an.
190
00:28:16,212 --> 00:28:20,381
Almost irreversible demise.
191
00:28:26,138 --> 00:28:32,900
Unless temperatures drop,
the reef becomes a wasteland.
192
00:28:37,216 --> 00:28:39,433
In three decades,
193
00:28:39,535 --> 00:28:43,237
We've lost over a quarter
of the world's corals,
194
00:28:44,340 --> 00:28:48,976
Home to around
4000 species of fish.
195
00:28:50,579 --> 00:28:54,515
If warming continues,
we could lose the rest.
196
00:29:03,976 --> 00:29:06,877
Even those that live far
below aren't safe from.
197
00:29:06,979 --> 00:29:10,314
Rising ocean temperatures.
198
00:29:13,135 --> 00:29:16,170
Opalescent squid.
199
00:29:21,260 --> 00:29:25,179
In the past few years, warming
seas disrupted their mating.
200
00:29:25,281 --> 00:29:29,366
Habits, and their numbers
have fallen dramatically.
201
00:29:33,289 --> 00:29:37,207
But this year, an influx
of cold water has revived.
202
00:29:37,309 --> 00:29:40,210
Their breeding ritual.
203
00:29:50,720 --> 00:29:54,107
A trip to the shallows
to mate by moonlight.
204
00:29:57,980 --> 00:30:01,782
Males grab the females
and fertilize their eggs,
205
00:30:05,271 --> 00:30:08,806
Which are then
deposited on the sea floor.
206
00:30:11,644 --> 00:30:14,711
It's a brief and brutal affair.
207
00:30:21,704 --> 00:30:25,906
Within days of
mating they will all die.
208
00:30:31,981 --> 00:30:35,566
But their legacy lives on.
209
00:30:38,854 --> 00:30:43,607
Each capsule contains
up to 300 new lives.
210
00:30:48,214 --> 00:30:51,715
One successful breeding season
can go a long way towards.
211
00:30:51,817 --> 00:30:56,136
Reversing their
recent bad fortunes.
212
00:31:00,342 --> 00:31:04,111
Those still alive retreat
back to a place beyond.
213
00:31:04,213 --> 00:31:07,314
The reach of the sun,
214
00:31:12,538 --> 00:31:16,206
Where crushing pressures
have morphed bodies,
215
00:31:18,544 --> 00:31:21,478
Into the stuff of nightmares.
216
00:31:30,372 --> 00:31:34,740
To reach one of the most
hostile environments on earth,
217
00:31:35,100 --> 00:31:38,812
You must descend
thousands of feet,
218
00:31:40,883 --> 00:31:46,603
Beyond the sun's reach,
down into the ocean's depths.
219
00:31:49,410 --> 00:31:53,110
The pressure here would
crush you like a soda can.
220
00:31:58,550 --> 00:32:02,369
There is life, just
not as we know it.
221
00:32:06,442 --> 00:32:10,677
75% of animals
make their own light.
222
00:32:11,914 --> 00:32:14,848
Eyes are super-sized.
223
00:32:14,950 --> 00:32:18,335
To catch what tiny
luminescence there is,
224
00:32:20,906 --> 00:32:24,341
And soft bodies dominate.
225
00:32:29,140 --> 00:32:32,899
In this vast,
abyssal wilderness,
226
00:32:34,103 --> 00:32:38,405
One of the toughest
trials is finding a mate.
227
00:32:41,143 --> 00:32:45,412
Angler fish have a
grizzly solution.
228
00:32:46,115 --> 00:32:49,299
This giant female's
tiny hanger-on.
229
00:32:49,401 --> 00:32:52,936
Is a male angler fish.
230
00:32:54,940 --> 00:32:58,775
Many males never find a mate.
231
00:32:59,445 --> 00:33:03,714
Those that do, never let go.
232
00:33:05,184 --> 00:33:08,735
His mouth fuses
with her very tissue.
233
00:33:08,837 --> 00:33:12,172
His only nourishment, her blood.
234
00:33:13,942 --> 00:33:17,678
Bonded for life.
235
00:33:23,200 --> 00:33:26,837
This alien environment
is full of surprises.
236
00:33:30,676 --> 00:33:34,111
It even snows down here.
237
00:33:35,748 --> 00:33:38,715
Flakes of organic
matter fall for weeks.
238
00:33:38,801 --> 00:33:42,736
Towards the sea floor.
239
00:33:44,840 --> 00:33:47,741
Along the way, they
fuel an ecosystem of.
240
00:33:47,843 --> 00:33:52,946
Microscopic animals
and graceful giants.
241
00:33:58,637 --> 00:34:02,572
The stygiomedusa jellyfish.
242
00:34:04,576 --> 00:34:09,479
Its ribbon-like arms extend
up to 30 feet to absorb tiny.
243
00:34:09,581 --> 00:34:14,868
Planktonic creatures,
or so we believe.
244
00:34:16,805 --> 00:34:20,807
Even today, the lives of
these deep-sea monsters.
245
00:34:20,909 --> 00:34:25,145
Remain shrouded in mystery.
246
00:34:27,583 --> 00:34:31,334
But the biggest surprise of all,
247
00:34:32,304 --> 00:34:34,771
This marine underworld
is one of the most.
248
00:34:34,873 --> 00:34:37,908
Stable habitats on the planet,
249
00:34:40,913 --> 00:34:44,948
Out of touch with what's
happening far above.
250
00:35:01,817 --> 00:35:05,268
The sun has fueled a monster.
251
00:35:08,941 --> 00:35:13,710
It heats surface waters until
they evaporate and build into.
252
00:35:13,812 --> 00:35:18,315
Oceanic storms that
render humans powerless.
253
00:35:22,971 --> 00:35:26,390
And when conditions
are just right,
254
00:35:26,141 --> 00:35:29,176
They grow into one of the
most formidable forces.
255
00:35:29,278 --> 00:35:31,711
ON THE PLANET:
256
00:35:37,603 --> 00:35:40,237
Hurricanes.
257
00:35:40,973 --> 00:35:43,206
They form over tropical seas,
258
00:35:43,308 --> 00:35:46,309
Then their devastation spreads.
259
00:35:47,980 --> 00:35:51,214
They release so much energy
that just one could power.
260
00:35:51,316 --> 00:35:54,901
Our entire planet for a week.
261
00:35:56,805 --> 00:35:58,872
And as global temperatures rise,
262
00:35:58,974 --> 00:36:01,942
Hurricanes are growing stronger.
263
00:36:16,375 --> 00:36:20,277
This is the calm
before the storm.
264
00:36:21,213 --> 00:36:24,881
Most people are
already taking shelter.
265
00:36:26,668 --> 00:36:31,137
But just off shore,
others are on the move.
266
00:36:35,777 --> 00:36:39,312
Mullet in their millions.
267
00:36:42,768 --> 00:36:45,769
Few have heard of it,
but this is one of the.
268
00:36:45,871 --> 00:36:50,140
Largest gatherings of any
animal in the united states.
269
00:36:52,878 --> 00:36:56,246
The mullet need to reach
their spawning grounds.
270
00:36:56,348 --> 00:37:00,166
Further south before
temperatures drop too low.
271
00:37:05,240 --> 00:37:09,676
Such a mass of fish in the
sea doesn't go unnoticed.
272
00:37:20,272 --> 00:37:24,941
Expert hunters attack the
shoal from every angle.
273
00:37:28,614 --> 00:37:32,565
Below are the tarpon
and blacktip sharks.
274
00:37:40,242 --> 00:37:45,845
Above, pelicans, and osprey.
275
00:38:09,171 --> 00:38:13,730
As the waves are whipped up
by the approaching storm,
276
00:38:13,175 --> 00:38:16,409
The pendulum swings
in the mullet's favor.
277
00:38:24,200 --> 00:38:27,304
In the turbulent, shallow water,
278
00:38:27,406 --> 00:38:31,107
They're harder to target.
279
00:38:38,160 --> 00:38:41,801
Finally, the swells
grow too powerful,
280
00:38:45,173 --> 00:38:48,808
As the storm makes landfall.
281
00:38:58,103 --> 00:39:01,638
Along the coast, ocean
storms create some of.
282
00:39:01,740 --> 00:39:05,542
Nature's most awe
inspiring wonders.
283
00:39:12,901 --> 00:39:14,934
Nazaré in portugal.
284
00:39:15,530 --> 00:39:18,338
Sees some of the biggest
waves in the world,
285
00:39:22,911 --> 00:39:26,460
Towering as high as ten stories.
286
00:40:04,369 --> 00:40:07,771
But the stormier
our seas become,
287
00:40:07,873 --> 00:40:11,674
The more those living
on the coast suffer.
288
00:40:19,568 --> 00:40:23,369
An island on the
edge of existence.
289
00:40:29,578 --> 00:40:32,912
Home to rockhopper penguins.
290
00:40:37,200 --> 00:40:40,804
A dense layer of fat
gives them some protection.
291
00:40:43,241 --> 00:40:46,543
Still they take a battering.
292
00:40:54,903 --> 00:40:58,505
This mother can't back out now.
293
00:41:04,479 --> 00:41:07,647
Her chick needs food.
294
00:41:20,445 --> 00:41:23,980
And its dad's turn
to hold the fort.
295
00:41:29,437 --> 00:41:32,739
Life in the colony is tough.
296
00:41:33,308 --> 00:41:36,376
Declining fish stocks
and rougher seas.
297
00:41:36,478 --> 00:41:40,146
Have made food
harder to come by.
298
00:41:49,107 --> 00:41:51,608
Mum has to hunt,
299
00:41:54,145 --> 00:41:57,413
And what was already a rough sea.
300
00:41:58,316 --> 00:42:02,350
Is about to get a
whole lot rougher.
301
00:42:19,370 --> 00:42:23,673
The most powerful storm in
almost 30 years is closing in.
302
00:42:26,344 --> 00:42:30,446
Worse than anything these
penguins have faced before.
303
00:42:41,109 --> 00:42:43,943
On the far
south of the globe,
304
00:42:44,450 --> 00:42:47,480
A brutal storm is
finally subsiding.
305
00:42:49,601 --> 00:42:51,935
But for these
rockhopper penguins,
306
00:42:52,370 --> 00:42:54,938
The waves are still deadly.
307
00:43:03,248 --> 00:43:06,566
The latest shift
of hunters returns.
308
00:43:20,615 --> 00:43:25,340
But this chick's mum
is nowhere to be seen.
309
00:43:28,940 --> 00:43:32,842
Then, she appears.
310
00:43:36,810 --> 00:43:39,282
Amongst the last stragglers.
311
00:44:02,674 --> 00:44:09,345
♪ ♪
312
00:44:45,750 --> 00:44:49,680
Home and dry.
313
00:45:14,379 --> 00:45:18,981
In just 12 hours, she'll
return to battle the waves.
314
00:45:22,971 --> 00:45:26,906
And risk her life for
her chick once more.
315
00:45:38,690 --> 00:45:40,690
Right from the very beginning,
316
00:45:40,171 --> 00:45:43,473
The ocean has been a cradle
of life on our planet,
317
00:45:43,575 --> 00:45:46,209
And the many creatures
that still live here are.
318
00:45:46,311 --> 00:45:50,113
Really a legacy of that
irrepressible will to.
319
00:45:50,215 --> 00:45:53,132
Succeed in a turbulent world.
320
00:45:53,234 --> 00:45:56,302
No matter what the
ocean has thrown at them,
321
00:45:56,404 --> 00:45:59,505
Somehow they've
managed to endure.
322
00:46:06,714 --> 00:46:11,200
Against near impossible odds,
this mum-to-be has found her.
323
00:46:11,302 --> 00:46:15,772
Way back to the beach
where she was born.
324
00:46:20,645 --> 00:46:23,513
It's the first time
she's been on land.
325
00:46:23,615 --> 00:46:26,532
Since hatching over
a decade ago,
326
00:46:28,536 --> 00:46:31,437
And she's not alone.
327
00:46:36,444 --> 00:46:40,646
Hundreds of thousands of
female olive ridley turtles.
328
00:46:40,748 --> 00:46:43,666
Are returning to the
costa rican coastline.
329
00:46:43,768 --> 00:46:46,469
To lay their eggs.
330
00:46:51,609 --> 00:46:56,813
A cycle of life sustained by
the sea for 30 million years.
331
00:47:01,369 --> 00:47:05,171
Never has their
journey been harder,
332
00:47:06,400 --> 00:47:08,774
Yet so far, these
turtles are still.
333
00:47:08,877 --> 00:47:13,112
Holding on in these
fast changing times.
334
00:47:18,670 --> 00:47:20,230
Captioned by cotter
captioning services.
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