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1
00:00:12,613 --> 00:00:15,714
Bear: These emperor penguins
are about to undertake
2
00:00:15,816 --> 00:00:19,301
One of the greatest feats of
endurance on the planet.
3
00:00:35,836 --> 00:00:38,404
A single egg.
4
00:00:40,141 --> 00:00:44,710
It's taken almost all this
mother's energy to create.
5
00:00:49,050 --> 00:00:52,868
Time to entrust
it to her mate.
6
00:00:55,639 --> 00:00:59,074
While she leaves
to feed at sea.
7
00:01:06,867 --> 00:01:10,702
Now it's up to dad.
8
00:01:14,575 --> 00:01:18,977
He must carry the egg through
the world's worst winter.
9
00:01:19,080 --> 00:01:25,200
(wind howling).
10
00:01:27,037 --> 00:01:32,508
Risk his own life to keep the
chick growing inside alive.
11
00:01:38,682 --> 00:01:42,935
Just one of the many
remarkable stories of how
12
00:01:43,037 --> 00:01:47,272
Life triumphs at the
ends of the earth.
13
00:01:48,209 --> 00:01:54,313
(theme music plays).
14
00:02:16,837 --> 00:02:19,271
When winter hits
the polar regions,
15
00:02:19,340 --> 00:02:22,107
The temperature
can drop as low as
16
00:02:22,209 --> 00:02:25,777
Minus 120 degrees fahrenheit.
17
00:02:26,881 --> 00:02:29,448
Almost nothing grows.
18
00:02:29,750 --> 00:02:33,569
Winds build into some of
the strongest on earth.
19
00:02:34,238 --> 00:02:37,706
You've got land and
sea locked in ice.
20
00:02:38,776 --> 00:02:41,210
And weeks of
perpetual darkness.
21
00:02:42,913 --> 00:02:46,148
Only a few remarkable
animals have what it takes
22
00:02:46,250 --> 00:02:50,802
To survive here, and
every day is a struggle
23
00:02:50,905 --> 00:02:54,406
Against the elements
and each other.
24
00:02:54,775 --> 00:02:58,710
(growling).
25
00:03:00,181 --> 00:03:03,248
Now the poles are
changing faster than
26
00:03:03,350 --> 00:03:05,834
Anywhere else on the planet.
27
00:03:06,136 --> 00:03:11,173
(crashing).
28
00:03:13,510 --> 00:03:15,978
And getting through
the coldest days,
29
00:03:16,080 --> 00:03:18,814
That's just the
beginning of the battle.
30
00:03:50,948 --> 00:03:52,648
Late fall.
31
00:03:52,750 --> 00:03:55,667
Polar bears are grounded.
32
00:03:59,440 --> 00:04:02,040
Once the sea has frozen over
33
00:04:02,142 --> 00:04:05,410
They can head out
and begin hunting.
34
00:04:06,880 --> 00:04:11,800
But since the 1970s
that's taking longer.
35
00:04:18,876 --> 00:04:22,411
Hunger claws for an
extra three weeks.
36
00:04:25,816 --> 00:04:30,402
And this young male must
face other challenges.
37
00:04:35,909 --> 00:04:38,527
An older rival.
38
00:04:53,410 --> 00:04:57,913
(growling).
39
00:05:03,737 --> 00:05:09,975
(growling).
40
00:05:18,969 --> 00:05:24,940
(growling).
41
00:05:25,042 --> 00:05:28,577
The largest of
all land predators.
42
00:05:31,048 --> 00:05:34,800
Male polar bears lead
a life of violence.
43
00:05:35,803 --> 00:05:40,038
But today punches
are being pulled.
44
00:05:46,647 --> 00:05:50,465
Sparring partners
test strength and skill.
45
00:05:55,973 --> 00:05:59,207
Preparing for tougher times.
46
00:06:00,611 --> 00:06:05,047
When the battle for food
and mates will be real.
47
00:06:05,549 --> 00:06:11,203
(growling).
48
00:06:18,946 --> 00:06:22,614
But first, patience.
49
00:06:25,035 --> 00:06:27,836
Wait for winter.
50
00:06:47,040 --> 00:06:49,608
The magic number.
51
00:06:50,878 --> 00:06:53,912
28.8 fahrenheit.
52
00:06:54,848 --> 00:06:58,200
Sea water begins to freeze.
53
00:07:03,941 --> 00:07:07,209
An ice kingdom is born.
54
00:07:07,945 --> 00:07:11,680
Almost limitless
hunting grounds.
55
00:07:14,435 --> 00:07:18,904
The harshest season is
when polar bears thrive.
56
00:07:25,012 --> 00:07:28,880
The arctic plunges
into 24 hours of night.
57
00:07:39,443 --> 00:07:43,345
Around the poles the planet's
magnetic field puts on an
58
00:07:43,447 --> 00:07:47,082
Unearthly display.
59
00:07:51,738 --> 00:07:55,774
In the north the
aurora borealis.
60
00:08:02,182 --> 00:08:07,102
And in the south
the aurora australis.
61
00:08:16,513 --> 00:08:20,015
Winter here looks heavenly.
62
00:08:21,235 --> 00:08:25,637
But for these emperor
penguins it's hell on earth.
63
00:08:32,012 --> 00:08:35,146
All of them are male.
64
00:08:35,516 --> 00:08:38,633
And if the eggs they're
carrying are to survive,
65
00:08:38,902 --> 00:08:42,771
All of them must stand strong.
66
00:08:45,175 --> 00:08:51,846
(wind howling).
67
00:09:04,711 --> 00:09:09,548
Each one takes their turn in
the full force of the wind.
68
00:09:14,838 --> 00:09:18,707
All the time balancing
their eggs on their toes.
69
00:09:20,944 --> 00:09:23,712
Just beyond the
ices deadly reach.
70
00:09:26,383 --> 00:09:32,904
(wind howling).
71
00:09:56,413 --> 00:09:57,812
(penguin call).
72
00:09:57,914 --> 00:10:02,767
75 days of
sacrifice finally over.
73
00:10:04,738 --> 00:10:09,007
(penguin calls).
74
00:10:14,448 --> 00:10:17,315
It was worth it.
75
00:10:17,401 --> 00:10:22,737
(penguin calls).
76
00:10:22,839 --> 00:10:27,309
Just 6 ounces, he's got
a lot of growing to do.
77
00:10:29,613 --> 00:10:34,566
Soon the ice on which
they stand will all be gone.
78
00:10:47,381 --> 00:10:52,667
This is canada's last land
before the arctic pack ice.
79
00:11:04,815 --> 00:11:08,867
Somehow an eight-strong
pack of arctic wolves
80
00:11:08,969 --> 00:11:11,786
Survives here.
81
00:11:22,616 --> 00:11:28,870
(yipping).
82
00:11:29,639 --> 00:11:31,706
During the brutal winter
83
00:11:31,808 --> 00:11:35,243
Finding food is
a daily struggle.
84
00:11:40,550 --> 00:11:45,804
But after almost three months
of darkness a ray of hope.
85
00:11:52,112 --> 00:11:55,580
(barking).
86
00:12:10,881 --> 00:12:14,082
Arctic hares are one of
the few other creatures
87
00:12:14,184 --> 00:12:17,168
That survive here.
88
00:12:18,205 --> 00:12:22,307
Gathering in huge
groups offers protection.
89
00:12:25,946 --> 00:12:28,780
And now the sun has returned,
90
00:12:28,882 --> 00:12:32,534
The element of
surprise is gone.
91
00:12:51,037 --> 00:12:57,175
♪ ♪
92
00:13:12,442 --> 00:13:17,111
A lot of effort for no return.
93
00:13:20,450 --> 00:13:23,601
There are bigger
opportunities here,
94
00:13:23,703 --> 00:13:26,771
But they come
with greater risks.
95
00:13:31,778 --> 00:13:34,212
Musk oxen.
96
00:13:36,082 --> 00:13:39,868
One of the
arctic's true survivors.
97
00:13:56,503 --> 00:13:59,838
Bear: In their search for
food the arctic wolf pack
98
00:13:59,940 --> 00:14:03,408
Can cover 50 miles in a day.
99
00:14:18,775 --> 00:14:21,809
These musk oxen have
spent all winter
100
00:14:21,912 --> 00:14:25,446
In this frozen waste land.
101
00:14:30,904 --> 00:14:33,838
They're built to survive.
102
00:14:40,280 --> 00:14:44,866
But just one adult
would feed the entire pack.
103
00:14:50,941 --> 00:14:55,310
To witness wolves hunt musk
oxen in winter is so rare
104
00:14:55,412 --> 00:15:01,165
It's never been captured
on camera, until now.
105
00:15:06,506 --> 00:15:08,573
(rumbling).
106
00:15:08,675 --> 00:15:11,976
This herd has a youngster.
107
00:15:12,679 --> 00:15:16,614
(rumbling).
108
00:15:17,083 --> 00:15:19,250
(whining).
109
00:15:19,336 --> 00:15:24,105
But it's protected
behind a united front.
110
00:15:30,313 --> 00:15:32,413
Armed with slashing horns,
111
00:15:32,515 --> 00:15:36,100
Adults weight up to 700 pounds.
112
00:15:44,844 --> 00:15:47,345
(rumbling).
113
00:15:50,016 --> 00:15:54,235
(bellow, whining).
114
00:15:54,337 --> 00:15:58,172
The wolves search for
weakness in their defense.
115
00:16:10,403 --> 00:16:13,137
Try to get them on the run.
116
00:16:24,250 --> 00:16:29,804
(snorting).
117
00:16:32,742 --> 00:16:37,979
(growling, barking).
118
00:16:47,040 --> 00:16:50,041
The mother won't
leave her calf,
119
00:16:50,577 --> 00:16:53,044
But her instincts
work against her.
120
00:16:54,748 --> 00:17:00,968
(growling, barking).
121
00:17:04,808 --> 00:17:08,576
(grunting).
122
00:17:20,040 --> 00:17:25,777
(growling, barking).
123
00:17:30,583 --> 00:17:36,070
(rumbling).
124
00:17:47,801 --> 00:17:52,370
In such a brutal landscape,
one animal's survival often
125
00:17:52,472 --> 00:17:56,074
Depends on another's fate.
126
00:18:12,475 --> 00:18:15,643
In the south, the
sun's power is increasing.
127
00:18:16,713 --> 00:18:21,799
(chattering, calling).
128
00:18:27,841 --> 00:18:31,809
It's been 12 weeks
since he hatched.
129
00:18:37,383 --> 00:18:42,103
In fewer than four months,
all this will have melted.
130
00:18:44,240 --> 00:18:48,159
By then chicks must
be ready to swim.
131
00:18:49,846 --> 00:18:53,281
(chattering, calling).
132
00:18:53,383 --> 00:18:57,201
His life depends on
how quickly he grows.
133
00:18:57,604 --> 00:19:02,740
(chirping).
134
00:19:05,612 --> 00:19:12,333
In just 150 days his body
weight must increase 70 times.
135
00:19:30,904 --> 00:19:35,106
(chirping, calling).
136
00:19:35,608 --> 00:19:40,111
Strengthening sun
promises easier times.
137
00:19:42,081 --> 00:19:46,801
But down here
promises are easily broken.
138
00:19:58,348 --> 00:20:03,100
Antarctica's freezing winds
have become more ferocious.
139
00:20:03,436 --> 00:20:06,837
(howling wind).
140
00:20:06,940 --> 00:20:10,474
A hole in the planet's
ozone layer is disrupting
141
00:20:10,577 --> 00:20:14,078
The atmosphere,
altering the weather.
142
00:20:16,583 --> 00:20:21,168
(howling wind).
143
00:20:21,271 --> 00:20:24,171
Even though dad hasn't
returned from fishing,
144
00:20:24,274 --> 00:20:26,674
The chick now
needs so much food,
145
00:20:26,776 --> 00:20:30,111
Mum must go too.
146
00:20:36,502 --> 00:20:40,304
His instincts are to follow.
147
00:20:48,414 --> 00:20:51,782
But it's a mistake.
148
00:20:52,101 --> 00:20:56,003
He's walking away from safety.
149
00:20:59,943 --> 00:21:04,578
(calling).
150
00:21:07,183 --> 00:21:12,903
(calling).
151
00:21:37,814 --> 00:21:41,248
Unless he makes it
back to the colony,
152
00:21:41,367 --> 00:21:43,301
He will die.
153
00:22:00,903 --> 00:22:02,903
(penguin calls).
154
00:22:03,006 --> 00:22:05,639
Bear: In antarctica
a storm has hit the
155
00:22:05,742 --> 00:22:07,942
Emperor penguin colony.
156
00:22:16,903 --> 00:22:20,371
It's taken a heavy toll.
157
00:22:25,945 --> 00:22:32,266
(calling).
158
00:22:35,338 --> 00:22:40,674
But most have survived,
keeping each other alive.
159
00:22:51,537 --> 00:22:55,740
Separated chicks must
now find their parents.
160
00:22:57,443 --> 00:23:00,344
(calling).
161
00:23:00,513 --> 00:23:06,434
Somewhere amongst
17,000 penguins,
162
00:23:09,305 --> 00:23:12,006
Is his father.
163
00:23:19,348 --> 00:23:22,833
(calling).
164
00:23:24,771 --> 00:23:27,671
His call is unique.
165
00:23:33,012 --> 00:23:36,814
Reunited and safe.
166
00:23:37,683 --> 00:23:41,836
These chicks have learned
an important life lesson.
167
00:23:42,672 --> 00:23:47,174
The colony only
survives by standing together.
168
00:23:58,070 --> 00:24:02,239
Spring races
across the arctic.
169
00:24:07,580 --> 00:24:11,182
The change brings
new challenges.
170
00:24:22,211 --> 00:24:25,146
A young female.
171
00:24:33,573 --> 00:24:37,508
She depends on seals for food.
172
00:24:38,077 --> 00:24:42,246
The only prey with enough
calories to sustain her.
173
00:24:51,240 --> 00:24:56,076
As the ice melts, escape
routes are now everywhere.
174
00:24:59,715 --> 00:25:02,800
Her chances plummet.
175
00:25:21,971 --> 00:25:33,347
(sniffing).
176
00:25:33,449 --> 00:25:36,700
Bears have an
acute sense of smell.
177
00:25:37,103 --> 00:25:41,238
(sniffing).
178
00:25:41,541 --> 00:25:45,442
They can detect seals
from nearly 2 miles.
179
00:25:56,973 --> 00:26:00,107
This one's closer.
180
00:26:13,472 --> 00:26:16,674
(sniffing).
181
00:26:49,308 --> 00:26:55,713
♪ ♪
182
00:26:58,868 --> 00:27:05,372
(cawing).
183
00:27:24,076 --> 00:27:28,545
News of her kill
carries on the wind.
184
00:27:30,583 --> 00:27:34,802
A huge male, he
needs food too,
185
00:27:35,271 --> 00:27:38,539
And he doesn't
care how he gets it.
186
00:27:41,127 --> 00:27:44,845
(grunting).
187
00:27:46,415 --> 00:27:52,269
(cawing).
188
00:27:55,608 --> 00:27:58,409
(roaring).
189
00:28:02,415 --> 00:28:04,982
Just bones.
190
00:28:12,341 --> 00:28:15,576
She's taken her fill.
191
00:28:15,678 --> 00:28:18,078
Now she must leave.
192
00:28:18,180 --> 00:28:22,332
A hungry male polar
bear can turn cannibal.
193
00:28:36,849 --> 00:28:41,602
Summer in the poles has always
been a time of transformation.
194
00:28:56,102 --> 00:28:59,570
But now the arctic is
changing faster than
195
00:28:59,672 --> 00:29:03,474
At any rate in recorded history.
196
00:29:04,910 --> 00:29:08,579
The climate is warming.
197
00:29:25,080 --> 00:29:29,967
Polar bears face
immediate survival choices.
198
00:29:30,069 --> 00:29:35,239
Head deeper in to the
ice or swim for land.
199
00:29:38,711 --> 00:29:43,847
Either way four
lean months lie ahead.
200
00:29:48,404 --> 00:29:51,972
Climate change at the poles
will bring challenges for
201
00:29:52,074 --> 00:29:57,244
Many, but for some
it's opportunity.
202
00:30:07,907 --> 00:30:11,475
Over 50 years the average
temperature here has risen
203
00:30:11,577 --> 00:30:15,412
By around 5 degrees fahrenheit.
204
00:30:19,568 --> 00:30:22,302
Gentoo penguins like
it warmer than their
205
00:30:22,404 --> 00:30:25,506
Ice loving emperor cousins.
206
00:30:33,415 --> 00:30:37,568
It exposes the bare rock
they need for nesting.
207
00:30:43,075 --> 00:30:46,476
The waters here are so
rich successfully raising
208
00:30:46,579 --> 00:30:49,813
Two chicks is far more likely.
209
00:30:50,249 --> 00:30:56,470
(chirping, calling).
210
00:30:56,572 --> 00:31:00,207
Who'll feed first is
decided by a chase.
211
00:31:04,113 --> 00:31:10,734
(chirping, calling).
212
00:31:27,269 --> 00:31:30,804
Chicks are at all stages.
213
00:31:32,608 --> 00:31:35,776
The oldest are
ready for the sea.
214
00:31:41,784 --> 00:31:46,436
But they're first taste of the
ocean may also be their last.
215
00:31:58,550 --> 00:32:02,069
Bear: A changing climate
around antarctica is helping
216
00:32:02,171 --> 00:32:05,238
Gentoo penguin populations.
217
00:32:07,343 --> 00:32:12,512
But even in summer conditions
can deteriorate rapidly.
218
00:32:33,502 --> 00:32:37,270
Storms blow brash
ice into shore.
219
00:32:45,514 --> 00:32:49,833
The route back to
the colony is blocked.
220
00:32:55,107 --> 00:32:59,593
Fledglings must negotiate
a maze of floating ice.
221
00:33:06,235 --> 00:33:10,837
It's all too easy
to get left behind.
222
00:33:12,608 --> 00:33:16,977
(chirping, calling).
223
00:33:18,547 --> 00:33:22,099
And that's not
the only danger.
224
00:33:33,846 --> 00:33:38,932
Pushing through
brash ice is hard work.
225
00:33:39,668 --> 00:33:43,804
But this is not a
safe place to rest.
226
00:34:05,094 --> 00:34:11,181
♪ ♪
227
00:34:19,074 --> 00:34:21,808
Panic drives them on.
228
00:34:23,245 --> 00:34:28,682
(chirping, calling).
229
00:34:35,240 --> 00:34:37,858
A leopard seal.
230
00:34:42,581 --> 00:34:46,900
A 12 foot long
penguin predator.
231
00:34:52,107 --> 00:34:55,909
Attention turns
to the straggler.
232
00:35:36,568 --> 00:35:42,038
The more he struggles,
the easier he is to find.
233
00:36:06,548 --> 00:36:13,170
♪ ♪
234
00:36:28,637 --> 00:36:32,205
Leopard seals like to
toy with their victims.
235
00:36:47,439 --> 00:36:52,876
With so much prey
about, there's no rush.
236
00:37:03,272 --> 00:37:05,705
(calling).
237
00:37:30,549 --> 00:37:37,237
♪ ♪
238
00:38:01,013 --> 00:38:05,582
(calling, growling).
239
00:38:05,667 --> 00:38:09,436
A last act of defiance.
240
00:38:11,406 --> 00:38:13,673
(chirping, calling).
241
00:38:16,445 --> 00:38:19,446
The one that got away.
242
00:38:30,242 --> 00:38:34,611
Still, there's plenty of
other penguins to play with.
243
00:38:53,982 --> 00:38:57,467
Summer intensifies.
244
00:38:59,171 --> 00:39:02,972
Ice continues to retreat.
245
00:39:09,748 --> 00:39:13,500
Polar bears are stranded.
246
00:39:16,972 --> 00:39:19,973
Their toughest time.
247
00:39:30,202 --> 00:39:34,237
Surviving on fat
built up last winter.
248
00:39:35,340 --> 00:39:38,641
Reserves are running low.
249
00:39:46,468 --> 00:39:49,736
There's almost nothing to eat.
250
00:39:51,406 --> 00:39:53,322
Almost.
251
00:39:53,408 --> 00:39:57,243
(sniffing).
252
00:40:02,901 --> 00:40:06,069
At this time of year
beluga whales arrive
253
00:40:06,171 --> 00:40:08,905
In canada's shallows.
254
00:40:10,909 --> 00:40:14,310
A sanctuary for newborns.
255
00:40:14,546 --> 00:40:19,566
These waters can be 18 degrees
warmer than the open sea.
256
00:40:22,204 --> 00:40:26,873
(clicking, whistling).
257
00:40:30,245 --> 00:40:33,646
This could be his life line.
258
00:40:38,470 --> 00:40:42,172
They're tantalizingly close.
259
00:40:55,737 --> 00:40:58,371
(squeaking, clicking).
260
00:40:58,740 --> 00:41:02,442
One of the few whales
with flexible necks.
261
00:41:02,978 --> 00:41:06,045
The belugas
easily see him coming.
262
00:41:19,644 --> 00:41:23,146
With each dive, he
wastes precious energy,
263
00:41:25,550 --> 00:41:29,903
And his chances of
surviving summer get slimmer.
264
00:41:40,582 --> 00:41:44,434
Ar: On the shores of hudson
bay a hungry polar bear is
265
00:41:44,536 --> 00:41:48,571
Desperately trying to
hunt beluga whales.
266
00:41:49,574 --> 00:41:53,910
Catching them in open water
has proved almost impossible.
267
00:41:56,581 --> 00:41:59,148
(squeaking, clicking).
268
00:41:59,267 --> 00:42:02,869
But he can't let this
opportunity slip away.
269
00:42:04,973 --> 00:42:07,974
A change in tactic.
270
00:42:10,445 --> 00:42:14,113
From the rock prey
is easier to spot.
271
00:42:19,638 --> 00:42:23,439
If only they
would come in range.
272
00:42:43,411 --> 00:42:48,948
Built for the cold,
suffering in the sun.
273
00:43:06,468 --> 00:43:12,672
♪ ♪
274
00:43:34,312 --> 00:43:37,280
Finally.
275
00:43:39,868 --> 00:43:42,001
A calf.
276
00:43:42,103 --> 00:43:45,338
Not fat like an adult
but perhaps just enough
277
00:43:45,440 --> 00:43:48,508
To keep starvation at bay.
278
00:43:54,549 --> 00:43:57,834
Hunting beluga whales might
make the difference between
279
00:43:57,936 --> 00:44:01,337
Life and death
for these bears.
280
00:44:02,273 --> 00:44:05,642
But if the ice-free
season gets longer.
281
00:44:05,744 --> 00:44:08,811
Even this may not be enough.
282
00:44:19,274 --> 00:44:22,475
Polar animals have evolved
to survive the coldest,
283
00:44:22,577 --> 00:44:25,511
Harshest conditions on earth.
284
00:44:25,613 --> 00:44:29,015
But now the polar regions
are warming more rapidly
285
00:44:29,117 --> 00:44:31,801
Than anywhere else.
286
00:44:31,903 --> 00:44:34,837
This means new
opportunities for some,
287
00:44:34,939 --> 00:44:37,340
But for the most cold adapted,
288
00:44:37,442 --> 00:44:40,843
There are seriously
challenging days ahead.
289
00:44:41,246 --> 00:44:45,748
The question is, can they
find new ways to adapt
290
00:44:45,850 --> 00:44:49,035
To a fast changing world.
291
00:45:07,572 --> 00:45:11,374
The emperor penguin parents
are on the home stretch.
292
00:45:35,617 --> 00:45:38,568
Together they have traveled
thousands of miles
293
00:45:38,670 --> 00:45:41,304
Keeping their chicks fed.
294
00:45:48,012 --> 00:45:51,614
(calling).
295
00:45:55,336 --> 00:45:58,938
He hatched out
at under a pound,
296
00:45:59,307 --> 00:46:04,210
Now he's over 20, almost
as big as his parents.
297
00:46:08,917 --> 00:46:12,135
(calling).
298
00:46:12,804 --> 00:46:16,205
Soon they'll stop
returning with food,
299
00:46:16,307 --> 00:46:19,375
Chicks will be
catching their own.
300
00:46:31,873 --> 00:46:38,044
(chirping).
301
00:46:47,539 --> 00:46:52,675
(chattering, calling).
302
00:46:52,977 --> 00:46:57,013
This family have done
everything they can,
303
00:46:57,382 --> 00:47:01,133
In the hope that their
chick will one day return.
304
00:47:02,303 --> 00:47:05,605
And the incredible story
of life at the poles
305
00:47:05,707 --> 00:47:07,940
Will continue.
306
00:47:18,803 --> 00:47:20,069
Captioned by cotter
captioning services.
24322
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