Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated:
1
00:00:36,081 --> 00:00:38,721
At the southern tip of South America,
2
00:00:38,841 --> 00:00:42,521
the Andes mountains rise
almost vertically.
3
00:00:48,441 --> 00:00:52,881
Their very height affects
life throughout the continent.
4
00:00:57,241 --> 00:01:00,521
The barren slopes look inhospitable.
5
00:01:06,561 --> 00:01:11,641
But like all parts of South America,
they're actually rich with wildlife.
6
00:01:22,681 --> 00:01:24,641
A family of puma.
7
00:01:31,361 --> 00:01:36,201
They live further south
than any other kind of cat on Earth.
8
00:01:45,761 --> 00:01:48,361
These cubs are only six months old -
9
00:01:48,481 --> 00:01:51,761
entirely dependent on their mother
for food.
10
00:01:54,961 --> 00:02:00,441
She knows how to exploit
this rugged landscape to her advantage.
11
00:02:08,481 --> 00:02:10,161
And she has to do so,
12
00:02:10,281 --> 00:02:14,641
if she is to catch the continent's
most challenging prey.
13
00:02:35,201 --> 00:02:38,201
Guanaco - a relative of the camel.
14
00:02:43,601 --> 00:02:47,441
Two metres tall and over three times
the weight of a puma.
15
00:02:50,561 --> 00:02:56,841
The mother's only hope is to go for
the throat and try to suffocate her prey.
16
00:04:03,361 --> 00:04:05,321
Her cubs try to help...
17
00:04:16,361 --> 00:04:19,321
...but they themselves
don't yet have the skills or the weight
18
00:04:19,441 --> 00:04:22,081
to bring down such large prey.
19
00:04:34,761 --> 00:04:38,081
And the mother is now badly injured.
20
00:04:50,321 --> 00:04:54,961
Her wounds are severe
and will take weeks to heal properly.
21
00:05:05,921 --> 00:05:09,321
But without food,
her cubs won't survive for long.
22
00:05:26,521 --> 00:05:30,561
The weather in the Andes
is harsh and unpredictable.
23
00:05:41,081 --> 00:05:46,761
Snow makes the camouflage
on which she relies much less effective.
24
00:05:52,961 --> 00:05:55,321
But she must have food.
25
00:06:13,521 --> 00:06:17,081
The guanaco have left
her normal hunting ground...
26
00:06:21,321 --> 00:06:25,561
...and are now in the territory
of a much larger male puma.
27
00:06:29,401 --> 00:06:34,041
He's just made a kill,
but he isn't about to share it with her.
28
00:06:36,161 --> 00:06:38,841
To hunt here,
she'll need to leave her cubs behind
29
00:06:38,961 --> 00:06:41,161
in the safety of their home territory.
30
00:07:05,201 --> 00:07:11,081
Almost invisible in the shadows,
she's nearly within pouncing distance.
31
00:07:32,801 --> 00:07:34,201
Another failure.
32
00:08:10,241 --> 00:08:12,561
She's got her speed back.
33
00:08:29,521 --> 00:08:32,401
Now she must hold on.
34
00:08:39,681 --> 00:08:44,401
But she is in the male's territory,
so her prize isn't safe...
35
00:08:47,561 --> 00:08:51,441
...and her hungry cubs
are almost a mile away.
36
00:08:57,561 --> 00:09:00,921
In her weakened state,
she will need all her reserves of energy
37
00:09:01,041 --> 00:09:04,361
to drag it back onto her territory.
38
00:09:16,441 --> 00:09:20,641
Only her determination
to feed her young keeps her going.
39
00:09:44,441 --> 00:09:46,361
Nearly there.
40
00:10:04,521 --> 00:10:10,081
This one meal will barely last the whole
family for more than a few days.
41
00:10:12,241 --> 00:10:16,601
Then their mother - somehow - will have
to summon the strength to hunt again.
42
00:10:24,441 --> 00:10:29,081
Life for a hunter in this land
is as hard as it gets.
43
00:10:40,641 --> 00:10:45,481
The Andes themselves were built by forces
deep in the Earth's crust.
44
00:10:47,241 --> 00:10:49,921
In this part of the Pacific,
45
00:10:50,041 --> 00:10:54,521
the ocean floor has been moving eastwards
for millions of years.
46
00:10:58,321 --> 00:11:00,961
Where the sediments meet
the edge of the continent,
47
00:11:01,081 --> 00:11:04,081
they're pushed together
and forced upwards.
48
00:11:07,641 --> 00:11:12,241
This pressure creates fractures
up which molten rock rises
49
00:11:12,361 --> 00:11:17,601
and is then spewed out as ash
and lava from great volcanoes.
50
00:11:26,681 --> 00:11:32,201
Nearly 200 of them stretch in a line
along the length of the continent.
51
00:11:42,561 --> 00:11:47,481
Some erupt with the force
of an atomic bomb every ten seconds.
52
00:11:57,001 --> 00:12:01,321
As the collision continues,
the sea floor is dragged downwards,
53
00:12:01,441 --> 00:12:04,281
creating a deep trench just offshore.
54
00:12:06,881 --> 00:12:10,601
Rich, cold waters rise up from it.
55
00:12:12,001 --> 00:12:15,881
And this upwelling creates
an abundance of life.
56
00:12:28,201 --> 00:12:30,721
Here, on the coast of Peru,
57
00:12:30,841 --> 00:12:34,561
there are so many seabirds fishing
in the offshore waters
58
00:12:34,681 --> 00:12:38,281
that the cliffs are covered
in droppings over a metre thick.
59
00:12:40,841 --> 00:12:44,081
Humboldt penguins regard the soft guano
60
00:12:44,201 --> 00:12:47,641
as a good material in which to dig
their nest holes.
61
00:12:50,601 --> 00:12:53,481
But it's a messy business.
62
00:13:01,241 --> 00:13:05,321
It's the breeding season,
and more hopeful nesters arrive,
63
00:13:05,441 --> 00:13:07,841
spotless from swimming in the sea.
64
00:13:10,441 --> 00:13:14,161
Time for the residents to get cleaned up
and catch some fish
65
00:13:14,281 --> 00:13:16,681
for themselves and their chicks.
66
00:13:28,841 --> 00:13:33,961
To get to the sea, they cross
the remains of an old nesting ground.
67
00:13:48,641 --> 00:13:51,521
Only 100 metres to go.
68
00:14:03,401 --> 00:14:07,281
But the beach is already crowded
with sea lions.
69
00:14:13,081 --> 00:14:16,321
They too have come ashore
to raise their young.
70
00:14:24,521 --> 00:14:27,121
And they don't like being disturbed.
71
00:14:35,041 --> 00:14:40,921
To get through such a minefield
needs a bold and courageous leader.
72
00:14:48,801 --> 00:14:50,521
A brave start.
73
00:14:55,841 --> 00:14:57,161
A dead end.
74
00:14:58,641 --> 00:15:00,001
Now he's in trouble.
75
00:15:07,761 --> 00:15:11,001
This is going to need
a bit of crowd surfing.
76
00:15:32,041 --> 00:15:35,681
But now all the sea lions are roused.
77
00:15:36,921 --> 00:15:38,521
Getting through them will be tricky.
78
00:16:09,121 --> 00:16:11,641
A cleansing bathe in the ocean...
79
00:16:12,801 --> 00:16:15,041
...well worth the effort.
80
00:16:19,041 --> 00:16:21,201
The animals living along the Pacific coast
81
00:16:21,321 --> 00:16:25,401
are cut off from the rest of South America
by the Andes.
82
00:16:30,641 --> 00:16:36,201
They form a gigantic barrier,
stretching over 4,000 miles
83
00:16:36,321 --> 00:16:41,721
from Patagonia in the south
to Venezuela in the north.
84
00:16:47,041 --> 00:16:50,441
This is the world's
longest mountain range.
85
00:16:54,921 --> 00:16:57,721
Many peaks are over four miles high.
86
00:17:00,681 --> 00:17:03,601
They are so tall they catch clouds...
87
00:17:04,681 --> 00:17:09,841
...and so create an environment
unlike any other on the continent.
88
00:17:22,881 --> 00:17:24,761
The cloud forest.
89
00:17:28,681 --> 00:17:33,681
Every high valley here
has its own unique plants and animals.
90
00:17:42,801 --> 00:17:46,081
One of them is the aptly named
Pinocchio lizard.
91
00:17:47,561 --> 00:17:52,281
It was first recorded here 50 years ago
and then lost.
92
00:17:52,401 --> 00:17:55,721
It's only recently been rediscovered.
93
00:18:05,801 --> 00:18:11,161
Up here lives a creature
so rare that it's seldom seen,
94
00:18:11,281 --> 00:18:14,721
even by those scientists
who have come here to study it.
95
00:18:16,881 --> 00:18:19,161
The Andean bear.
96
00:18:21,801 --> 00:18:23,961
Only a few thousand remain.
97
00:18:34,001 --> 00:18:37,641
They eat mostly leaves and fruit,
98
00:18:37,761 --> 00:18:42,721
often clambering up
to the very top of the canopy to do so.
99
00:18:59,241 --> 00:19:03,721
He's looking for a type
of miniature avocado...
100
00:19:20,801 --> 00:19:22,321
...30 metres up.
101
00:19:30,481 --> 00:19:34,761
The only fruit remaining here
is out on the thinnest branches -
102
00:19:34,881 --> 00:19:37,361
too thin to support the weight of a bear.
103
00:19:44,121 --> 00:19:48,201
A more experienced bear
has turned up and wants a go.
104
00:19:54,481 --> 00:19:59,241
Time for young ones to watch
and learn how to do it.
105
00:20:02,561 --> 00:20:06,361
The trick is to bite the branch
just enough...
106
00:20:08,561 --> 00:20:13,241
...to make it swing down
and bring the fruit within reach.
107
00:20:28,081 --> 00:20:29,481
Whoops!
108
00:20:39,641 --> 00:20:43,601
Now there's a race to be
first on the ground to claim it.
109
00:21:05,921 --> 00:21:09,081
The moisture needed
to create a cloud forest
110
00:21:09,201 --> 00:21:11,681
only occurs above a certain altitude...
111
00:21:13,761 --> 00:21:17,361
...so each peak may now have
its own species.
112
00:21:22,041 --> 00:21:25,161
In Venezuela,
there are similar small worlds,
113
00:21:25,281 --> 00:21:28,881
created not by rain, but by rock.
114
00:21:31,441 --> 00:21:35,961
A great layer of sandstone
once covered this entire area,
115
00:21:36,081 --> 00:21:38,001
but rivers cut through it.
116
00:21:42,241 --> 00:21:46,601
As the valleys widened,
the tablelands became first huge plateaus,
117
00:21:46,721 --> 00:21:50,401
then isolated flat-topped mountains...
118
00:21:57,961 --> 00:22:02,201
...and, eventually, towers and spires.
119
00:22:12,601 --> 00:22:17,561
On the tops of the bigger ones, animals
and plants have now become so different
120
00:22:17,681 --> 00:22:20,641
that they can be counted as new species.
121
00:22:46,361 --> 00:22:49,921
There is no higher waterfall
in the world...
122
00:22:51,521 --> 00:22:52,641
...than this one.
123
00:22:55,201 --> 00:23:00,761
Angel Falls - almost a kilometre
from top to bottom.
124
00:23:05,081 --> 00:23:08,641
The vertical cliffs surrounding
many of these mountains
125
00:23:08,761 --> 00:23:12,601
have kept them largely free
from human exploitation.
126
00:23:15,801 --> 00:23:19,281
No such barriers have protected
the lowlands...
127
00:23:21,241 --> 00:23:24,081
...but a few patches of forest
still remain.
128
00:23:27,241 --> 00:23:33,841
One in Colombia is the home
of one of the world's rarest monkeys.
129
00:23:35,801 --> 00:23:38,561
Cotton-topped tamarins.
130
00:23:38,681 --> 00:23:41,041
They're critically endangered.
131
00:23:47,801 --> 00:23:51,401
Only a few hundred families remain.
132
00:24:04,441 --> 00:24:07,401
They live largely on fruit
133
00:24:07,521 --> 00:24:11,321
and are particularly fond of tree sap.
134
00:24:12,481 --> 00:24:17,561
This is packed with sugars,
so it also attracts insects.
135
00:24:23,201 --> 00:24:25,481
But tamarins like them too -
136
00:24:25,601 --> 00:24:29,201
a little bit of protein
to add to their diet.
137
00:24:33,401 --> 00:24:38,361
There used to be over 50,000 species
of insect to choose from...
138
00:24:44,681 --> 00:24:46,801
...but as the forest
has shrunk around them,
139
00:24:46,921 --> 00:24:50,521
it's becoming more difficult
to find the right ones.
140
00:25:02,561 --> 00:25:05,321
South America is changing.
141
00:25:09,841 --> 00:25:15,521
Over 95% of Colombia's lowland forest
has now been cleared.
142
00:25:19,201 --> 00:25:22,601
Farming has taken the biggest share.
143
00:25:29,321 --> 00:25:32,601
This patch of forest is now isolated.
144
00:25:39,041 --> 00:25:42,001
The few tamarin families here
145
00:25:42,121 --> 00:25:46,081
are now cut off
from the rest of their species...
146
00:25:47,601 --> 00:25:51,281
...and beyond their boundary
lies an alien world.
147
00:25:58,841 --> 00:26:04,881
Today, more than 2,000 species of animal
in South America are under threat.
148
00:26:09,561 --> 00:26:11,321
All across the continent,
149
00:26:11,441 --> 00:26:16,561
forest is being steadily cut down
and replaced by farms.
150
00:26:24,841 --> 00:26:29,001
Images from space
reveal the scale of the destruction.
151
00:26:42,401 --> 00:26:44,481
Throughout South America as a whole,
152
00:26:44,601 --> 00:26:50,521
an area of forest the size of a football
pitch is being lost every five seconds.
153
00:27:05,921 --> 00:27:08,241
Of all the forests at risk,
154
00:27:08,361 --> 00:27:13,121
perhaps the most precious
lies in the very heart of the continent.
155
00:27:14,961 --> 00:27:17,401
The Amazon rainforest -
156
00:27:17,521 --> 00:27:19,161
the largest on Earth.
157
00:27:31,561 --> 00:27:36,201
Over two million species of plants
and animals now live here -
158
00:27:36,321 --> 00:27:40,961
more than is found on any other
of the Earth's seven continents.
159
00:28:08,081 --> 00:28:13,401
Food is so abundant that some male birds,
instead of helping with nest duties,
160
00:28:13,521 --> 00:28:16,881
try to mate with as many females
as possible.
161
00:28:19,201 --> 00:28:23,561
This is a male manakin
showing off to a female.
162
00:28:23,681 --> 00:28:26,761
He does so by dancing...
163
00:28:29,481 --> 00:28:33,201
...and he has a team
of subordinate males to help him.
164
00:28:36,521 --> 00:28:41,841
By supporting him now, they may
themselves eventually become leaders
165
00:28:41,961 --> 00:28:44,281
and get a chance to mate.
166
00:28:51,041 --> 00:28:55,721
The team is assembled
and the performance begins.
167
00:29:00,721 --> 00:29:02,841
She takes a closer look.
168
00:29:44,161 --> 00:29:47,681
The top male signals the end
with a final flourish.
169
00:29:58,041 --> 00:29:59,641
What's the verdict?
170
00:30:07,721 --> 00:30:08,841
Not good enough.
171
00:30:10,601 --> 00:30:11,961
Unbelievable!
172
00:30:16,281 --> 00:30:19,121
So it's back to practising.
173
00:30:32,321 --> 00:30:37,161
Each animal species in this crowded
environment has to have its own way
174
00:30:37,281 --> 00:30:39,241
of creating a niche for itself.
175
00:30:45,881 --> 00:30:48,921
This is a poison dart frog.
176
00:30:50,041 --> 00:30:53,921
Males raise their young
in a very special way.
177
00:30:57,201 --> 00:31:02,801
A father will place each one of his
tadpoles in its own tiny pool of water.
178
00:31:04,241 --> 00:31:05,681
This is one.
179
00:31:05,801 --> 00:31:07,961
Nice and safe.
180
00:31:10,361 --> 00:31:14,121
He might have up to five other tadpoles.
181
00:31:16,281 --> 00:31:20,241
But he needs to remember
where he put each one of them.
182
00:31:23,481 --> 00:31:25,441
This one isn't doing so well.
183
00:31:26,721 --> 00:31:30,241
His tiny puddle has all but dried out.
184
00:31:31,561 --> 00:31:36,361
The tadpole will die unless its father
can find a better place for it.
185
00:31:38,841 --> 00:31:44,441
If dads are good for one thing,
it's piggyback rides.
186
00:31:54,081 --> 00:31:57,041
Fathers are no bigger
than a human thumbnail,
187
00:31:57,161 --> 00:32:00,681
but this enables them
to get to places that others can't.
188
00:32:02,561 --> 00:32:05,161
This could be perfect.
189
00:32:11,321 --> 00:32:14,841
The only problem
is that there's no food here.
190
00:32:16,401 --> 00:32:18,801
Fathers need help.
191
00:32:24,561 --> 00:32:28,041
Somewhere in this forest...
192
00:32:30,521 --> 00:32:31,561
...is...
193
00:32:32,881 --> 00:32:34,041
...mum.
194
00:32:47,321 --> 00:32:50,561
A female could do something
a male cannot.
195
00:32:54,001 --> 00:32:58,921
But first, dad must lead his partner
to their hungry tadpole...
196
00:33:13,281 --> 00:33:15,961
...and mother deals with the problem.
197
00:33:19,001 --> 00:33:22,921
She lays a single unfertilised egg.
198
00:33:30,281 --> 00:33:34,401
And her tadpole gets a much-needed meal.
199
00:33:37,841 --> 00:33:41,761
For the next six weeks,
parents continue their rounds -
200
00:33:41,881 --> 00:33:45,641
an extraordinary test of teamwork
and memory.
201
00:33:51,801 --> 00:33:57,081
Warmed by the tropical sun, the Amazon's
trees release so much moisture
202
00:33:57,201 --> 00:34:02,041
from the surface of their leaves
that they create their own clouds.
203
00:34:03,681 --> 00:34:08,961
And these, over the course of a year,
release up to six metres of rain.
204
00:34:13,481 --> 00:34:18,561
The water flows through the saturated
forest along a thousand streams.
205
00:34:21,441 --> 00:34:26,121
They eventually unite to form
the largest river of them all.
206
00:34:29,961 --> 00:34:31,841
The Amazon carries more water
207
00:34:31,961 --> 00:34:35,681
than the world's next seven biggest rivers
combined.
208
00:34:38,601 --> 00:34:43,001
Some sections of its banks
are particularly sought-after.
209
00:34:53,081 --> 00:34:57,081
Scarlet macaws travel over 50 miles
to visit them.
210
00:35:05,081 --> 00:35:10,681
Macaw couples bond for life
and may stick together for over 40 years.
211
00:35:18,881 --> 00:35:23,961
Pairs return to favourite trees,
ones they've known for decades.
212
00:35:28,081 --> 00:35:32,201
Parents provide their chicks
with fruits and seeds,
213
00:35:32,321 --> 00:35:36,201
but they're far from the ocean
and their diet lacks salt.
214
00:35:37,321 --> 00:35:42,481
Without it, the chicks' brains
and bones will not develop properly.
215
00:35:44,001 --> 00:35:46,801
So someone has to go and fetch it.
216
00:35:59,241 --> 00:36:02,241
Many other creatures are looking
for the same thing...
217
00:36:07,041 --> 00:36:09,761
...a clay lick.
218
00:36:11,201 --> 00:36:15,281
The earth here may be 40 times
richer in valuable minerals
219
00:36:15,401 --> 00:36:19,401
than anywhere else
in the surrounding forest.
220
00:36:22,481 --> 00:36:27,001
Over a dozen species of parrot
jostle for space.
221
00:36:28,921 --> 00:36:30,001
There's a strict order...
222
00:36:31,281 --> 00:36:32,681
...in who feeds first.
223
00:36:38,161 --> 00:36:41,641
Everyone is in a rush
to fill up and get airborne.
224
00:37:07,681 --> 00:37:11,961
Parents have to carry over 5kg of clay
to the nest
225
00:37:12,081 --> 00:37:14,561
before their chicks are ready to leave.
226
00:37:18,601 --> 00:37:23,281
Once fledged, these young will follow
their parents for up to a year,
227
00:37:23,401 --> 00:37:26,121
learning where to find the salts.
228
00:37:38,721 --> 00:37:44,201
Many of the great riches of South America
lie far beyond the Amazon basin.
229
00:37:48,401 --> 00:37:51,481
Over 1,000 miles
to the south of the Amazon,
230
00:37:51,601 --> 00:37:55,281
there's one creek
unlike any other on the continent.
231
00:38:10,001 --> 00:38:15,401
Here at Bonito, freshwater springs
bubble up from deep underground.
232
00:38:20,081 --> 00:38:24,601
Filtered through limestone,
they create crystal-clear pools...
233
00:38:27,241 --> 00:38:30,441
...and in them live some remarkable fish.
234
00:38:33,041 --> 00:38:34,481
Piraputanga.
235
00:38:36,081 --> 00:38:42,841
The water is so clear that they're able to
see what is going on above its surface.
236
00:38:48,681 --> 00:38:52,921
Brown capuchins are up there,
looking for a meal.
237
00:39:00,961 --> 00:39:04,041
The piraputanga watch them
attentively.
238
00:39:05,961 --> 00:39:09,881
Wherever the monkeys go
along the banks, the fish follow.
239
00:39:18,481 --> 00:39:23,001
The monkeys are on
their daily search for ripe fruit,
240
00:39:23,121 --> 00:39:28,201
and the fish cannot by themselves know
where that might be.
241
00:39:30,441 --> 00:39:32,801
But here it is.
242
00:39:41,601 --> 00:39:46,441
And fortunately, the monkeys
aren't the neatest of feeders.
243
00:40:05,761 --> 00:40:07,441
Every scrap is fought over.
244
00:40:14,641 --> 00:40:19,001
One monkey has the job
of keeping an eye out for danger.
245
00:40:32,081 --> 00:40:35,281
Anacondas are the largest of all snakes.
246
00:40:39,401 --> 00:40:42,521
They grow to over 200kg.
247
00:40:45,481 --> 00:40:49,041
And they usually
stalk their prey from the water...
248
00:40:53,641 --> 00:40:56,841
...but it's not fish that they're after.
249
00:41:08,121 --> 00:41:14,001
If the monkeys stray too close
to the water, they will be in danger.
250
00:41:26,921 --> 00:41:29,241
The scout gives a warning call.
251
00:41:41,281 --> 00:41:45,361
That might have to be the end
of the monkey's meal for today.
252
00:41:48,841 --> 00:41:52,361
But now the piraputanga
know where the fruit is.
253
00:41:54,081 --> 00:41:57,281
And there's still plenty left on the tree.
254
00:42:00,041 --> 00:42:04,961
In the monkeys' absence,
they go for it themselves.
255
00:42:14,001 --> 00:42:19,201
Success or failure
is just a matter of millimetres.
256
00:42:34,921 --> 00:42:38,921
With a split-second adjustment,
the fish bends in mid-air
257
00:42:39,041 --> 00:42:40,801
and collects the prize.
258
00:43:04,201 --> 00:43:07,121
The piraputanga's extraordinary
feeding technique
259
00:43:07,241 --> 00:43:10,081
relies on these waters remaining clear.
260
00:43:17,001 --> 00:43:22,001
But today, the future of South America's
rivers has become uncertain.
261
00:43:25,921 --> 00:43:30,921
As the human population has grown,
people have become more and more reliant
262
00:43:31,041 --> 00:43:34,561
on its rivers for one of the essentials
of modern life.
263
00:43:37,561 --> 00:43:38,681
Power.
264
00:43:41,681 --> 00:43:46,881
Two-thirds of South America's energy
now comes from hydroelectricity.
265
00:43:48,801 --> 00:43:52,561
No other region on Earth
is so dependent upon it.
266
00:43:54,361 --> 00:43:59,361
But the way these dams are managed
can cause problems farther downriver.
267
00:44:06,641 --> 00:44:08,841
These are the Iguazu Falls.
268
00:44:15,001 --> 00:44:21,761
If the dams upriver suddenly release
their excess, Iguazu can double in size.
269
00:44:27,001 --> 00:44:31,121
And that can cause major problems
for animals that live here.
270
00:44:39,041 --> 00:44:41,281
These are great dusky swifts.
271
00:44:41,401 --> 00:44:44,961
They fly alarmingly close
to the thundering torrent...
272
00:44:47,921 --> 00:44:49,361
...and then vanish.
273
00:44:55,161 --> 00:45:00,201
Miraculously, they're able to fly
right through the curtain of water.
274
00:45:04,361 --> 00:45:09,681
And they do so because they've built
their nests behind the thundering curtain.
275
00:45:13,241 --> 00:45:17,481
Their enemies - falcons,
like this caracara - can't follow them.
276
00:45:19,241 --> 00:45:22,201
So the swift chicks are safe.
277
00:45:38,441 --> 00:45:43,841
But now humans have created
new problems for the swifts.
278
00:45:43,961 --> 00:45:47,241
Just as some of the chicks
are starting to fly,
279
00:45:47,361 --> 00:45:51,961
the spill over the dams
is released in full force.
280
00:46:04,001 --> 00:46:08,881
As the torrent grows,
parents give up on the last perches.
281
00:46:21,001 --> 00:46:24,441
Now the chicks are alone.
282
00:46:29,961 --> 00:46:34,361
But they don't yet have
their parents' waterproof feathers.
283
00:46:37,801 --> 00:46:43,721
Every year, the sudden surges of water
sweep some to their death.
284
00:46:52,241 --> 00:46:56,161
The chicks have never seen the world
beyond the falling waters.
285
00:47:08,641 --> 00:47:12,801
Unless they can find a way through,
they will not survive.
286
00:47:35,441 --> 00:47:38,681
Amazingly, driven by blind instinct,
287
00:47:38,801 --> 00:47:41,561
chicks do manage
to power their way through.
288
00:47:56,521 --> 00:48:02,361
These remarkable birds have colonised
a niche in which few can survive.
289
00:48:05,401 --> 00:48:10,561
Yet their future,
and that of all wildlife in South America,
290
00:48:10,681 --> 00:48:17,041
will depend on us striking a balance
between the needs of humans and animals,
291
00:48:17,161 --> 00:48:21,521
on the richest and most diverse continent
on Earth.
292
00:48:40,241 --> 00:48:43,801
To film one
of South America's most elusive predators,
293
00:48:43,921 --> 00:48:48,161
the Seven Worlds team would travel
to the far south of the continent.
294
00:48:54,881 --> 00:48:59,881
Their aim was to capture
footage of wild pumas hunting.
295
00:49:00,001 --> 00:49:04,601
But what the team encountered
was the struggle of a mother
296
00:49:04,721 --> 00:49:07,241
desperate to feed her family.
297
00:49:09,801 --> 00:49:14,561
Chile's Torres del Paine covers
nearly 1,000 square miles.
298
00:49:17,281 --> 00:49:20,921
Cameraman John Shier has been coming
here for eight years,
299
00:49:21,041 --> 00:49:25,321
but even he has never witnessed
a successful puma hunt.
300
00:49:26,521 --> 00:49:28,521
With so much ground to cover,
301
00:49:28,641 --> 00:49:32,801
the crew use the latest
technology to scout from the air.
302
00:49:32,921 --> 00:49:38,041
Bertie is setting up the drone
cos it helps find the cats
303
00:49:38,161 --> 00:49:39,881
and get a unique perspective
304
00:49:40,001 --> 00:49:42,161
on exactly where they are in this habitat.
305
00:49:47,401 --> 00:49:53,081
But expert tracker Roberto Donoso
has 15 years' experience here
306
00:49:53,201 --> 00:49:56,721
and he relies on help
from a surprising local.
307
00:50:00,721 --> 00:50:05,081
No-one can spot a puma
as well as a guanaco.
308
00:50:08,561 --> 00:50:10,881
John is first to pick up the clues.
309
00:50:11,001 --> 00:50:12,601
- Hey, cat...
- Cat, yeah.
310
00:50:12,721 --> 00:50:14,041
Cat. We've got a cat, OK.
311
00:50:17,881 --> 00:50:22,441
You can see guanaco
on the other side, alarm calling.
312
00:50:29,001 --> 00:50:31,321
That cat is just sat on the ridge,
313
00:50:31,441 --> 00:50:34,361
and the full moon has just risen
right behind it.
314
00:50:35,641 --> 00:50:38,081
It's almost cheesy.
315
00:50:39,721 --> 00:50:41,321
Our very first puma.
316
00:50:44,721 --> 00:50:47,361
Once John starts to get his eye in,
317
00:50:47,481 --> 00:50:52,041
he realises he's being watched
by more than one cat.
318
00:50:58,361 --> 00:51:01,241
It's crazy. So we're sitting here,
we've got this young male
319
00:51:01,361 --> 00:51:03,881
just over the ridge,
so we've got that cat.
320
00:51:04,001 --> 00:51:05,441
While you're sitting here,
321
00:51:05,561 --> 00:51:08,401
you hear other guanaco
alarming other spots
322
00:51:08,521 --> 00:51:12,201
and you realise that there's just cats
roaming all round the landscape.
323
00:51:12,321 --> 00:51:18,201
Over the coming days,
John sees more puma than ever before.
324
00:51:19,241 --> 00:51:22,081
The situation is
like nothing the crew expected.
325
00:51:22,201 --> 00:51:24,921
For a long time, we used to say
326
00:51:25,041 --> 00:51:28,001
that trying to spot puma was so unusual
and so rare,
327
00:51:28,121 --> 00:51:33,761
but the real, remarkable thing
is actually we're seeing cats every day.
328
00:51:35,001 --> 00:51:39,641
And to think that there's this many
puma around is just... It's incredible.
329
00:51:39,761 --> 00:51:43,121
After decades of persecution by humans,
330
00:51:43,241 --> 00:51:47,401
puma are now protected in southern Chile
and making a comeback.
331
00:51:51,561 --> 00:51:54,681
But to stand any chance
of seeing them hunt,
332
00:51:54,801 --> 00:51:58,041
the crew would need to find
just the right cat.
333
00:52:02,081 --> 00:52:06,201
Three weeks in,
John has spotted something promising.
334
00:52:06,321 --> 00:52:08,201
He alerts the crew.
335
00:52:10,921 --> 00:52:16,521
It was just up here
to my right, about 100 yards from me.
336
00:52:16,641 --> 00:52:20,161
- So he's to the right.
- But closer to John.
337
00:52:20,281 --> 00:52:22,041
Ah, got him. Yeah, yeah, yeah.
338
00:52:23,401 --> 00:52:25,521
Wow, that's four, all right.
339
00:52:27,001 --> 00:52:28,601
Looks like a pride of lions.
340
00:52:30,881 --> 00:52:34,961
A mother with three cubs,
and Roberto knows exactly who she is.
341
00:52:37,481 --> 00:52:39,801
Her name is Sarmiento.
342
00:52:42,761 --> 00:52:46,841
Her struggle to feed her family
is now the crew's main focus.
343
00:52:49,321 --> 00:52:52,041
The challenge is to keep up.
344
00:52:53,681 --> 00:52:58,721
A mother on the search for food
will roam vast distances.
345
00:52:58,841 --> 00:53:02,121
Seven miles they've walked.
Haven't stopped walking.
346
00:53:03,321 --> 00:53:07,841
For the crew, this means dragging
heavy equipment over difficult terrain.
347
00:53:11,761 --> 00:53:13,361
So we've been following the cat so much
348
00:53:13,481 --> 00:53:15,281
that there's now a hole
in the bottom of my shoe.
349
00:53:19,681 --> 00:53:22,961
Unpredictable weather makes it
even harder.
350
00:53:40,801 --> 00:53:47,001
Five weeks in and John finally thinks
Sarmiento might have some luck.
351
00:53:47,121 --> 00:53:48,201
So it's more of a hope,
352
00:53:48,321 --> 00:53:50,841
but I think that she's going to get
one of these guanaco today.
353
00:53:50,961 --> 00:53:53,281
There's been a big herd
that's streaming into this valley,
354
00:53:53,401 --> 00:53:56,761
and for the last two hours, she's just
been watching them, like laser focus.
355
00:53:56,881 --> 00:53:58,961
Fingers crossed, today's the day.
356
00:54:30,201 --> 00:54:32,801
She fought so hard,
the guanaco fought really hard.
357
00:54:32,921 --> 00:54:34,721
In the end, she didn't get it,
but it's amazing
358
00:54:34,841 --> 00:54:37,321
how she has to fight to get a meal
to survive.
359
00:54:37,441 --> 00:54:40,761
Trying to take down an animal
as large as a guanaco
360
00:54:40,881 --> 00:54:43,641
has left Sarmiento badly injured.
361
00:54:45,281 --> 00:54:48,921
There's a lone guanaco,
just up to the right.
362
00:55:06,321 --> 00:55:09,641
Every failed attempt,
she gets weaker...
363
00:55:09,761 --> 00:55:13,161
Yeah, there you go. It was close,
but, yeah, she got thrown off pretty good.
364
00:55:14,281 --> 00:55:17,041
...but a hungry mother
doesn't give up easily.
365
00:55:22,081 --> 00:55:25,041
There's a group of guanacos down here,
366
00:55:25,161 --> 00:55:27,921
so we're trying to get
in a good position to launch the drone.
367
00:55:28,041 --> 00:55:30,241
- Can you see it?
- Yeah, got it.
368
00:55:30,361 --> 00:55:31,441
She's coming back.
369
00:55:33,481 --> 00:55:37,121
The crew will only have seconds
to get into position.
370
00:55:42,041 --> 00:55:44,561
50, 50 metres. 50.
371
00:55:48,441 --> 00:55:50,801
OK. 20, 20 metres. It's going.
372
00:55:50,921 --> 00:55:52,041
20 metres.
373
00:55:57,161 --> 00:55:59,481
It's going, it's going!
It's running, it's running!
374
00:56:13,401 --> 00:56:17,041
Witnessing this life-and-death
battle is difficult.
375
00:56:20,401 --> 00:56:25,041
But at last,
John sees Sarmiento provide for her cubs.
376
00:56:26,321 --> 00:56:31,761
I feel greatly relieved. It's been
30 days, 100 miles of walking with her,
377
00:56:31,881 --> 00:56:33,161
and we've finally got her doing it.
378
00:56:35,281 --> 00:56:38,321
During the chase, I was thinking,
"This time, please, please get it down."
379
00:56:38,441 --> 00:56:40,681
There's been three chases
where it got away.
380
00:56:42,681 --> 00:56:44,921
Her cubs have got food now.
She had to fight for it.
381
00:56:46,041 --> 00:56:51,201
Conservation efforts here have given
these secretive cats a rare safe haven,
382
00:56:51,321 --> 00:56:54,961
enabling the team to capture
a filming first...
383
00:56:56,241 --> 00:57:00,401
...and tell the remarkable story
of a fearless mother
384
00:57:00,521 --> 00:57:03,161
at the far edge of South America.
385
00:57:08,401 --> 00:57:09,401
Next time...
386
00:57:10,521 --> 00:57:12,441
...a continent marooned
387
00:57:12,561 --> 00:57:15,401
during the time of the dinosaurs,
388
00:57:15,521 --> 00:57:17,401
where the castaways...
389
00:57:19,081 --> 00:57:21,681
...are like nothing else on Earth.
390
00:57:27,801 --> 00:57:29,401
Australia.
34030
Can't find what you're looking for?
Get subtitles in any language from opensubtitles.com, and translate them here.