1
00:00:06,673 --> 00:00:10,176
[narrator] The Earth,
an impressive planet

2
00:00:11,177 --> 00:00:12,887
that has sustained life

3
00:00:12,970 --> 00:00:14,973
for thousands
of millions of years.

4
00:00:15,056 --> 00:00:18,852
[dramatic music]

5
00:00:18,894 --> 00:00:22,105
But it can be
a defiant and cruel home.

6
00:00:22,188 --> 00:00:24,315
[thunder]

7
00:00:25,817 --> 00:00:27,861
From the beginning,
the creatures

8
00:00:27,944 --> 00:00:30,572
they had to be strong
to survive.

9
00:00:30,655 --> 00:00:32,240
[roar]

10
00:00:32,323 --> 00:00:36,327
Mass extinctions ended
with entire species.

11
00:00:38,538 --> 00:00:40,415
From the supervolcanoes

12
00:00:40,457 --> 00:00:42,417
until the apocalypse
caused by an asteroid.

13
00:00:42,459 --> 00:00:44,086
[wind blow]

14
00:00:45,212 --> 00:00:48,214
From megafloods
to a frozen planet

15
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drowned by darkness.

16
00:00:52,301 --> 00:00:55,972
With every disaster,
there was suffering.

17
00:00:57,516 --> 00:01:00,518
But every time life came back...

18
00:01:02,479 --> 00:01:04,147
even stronger.

19
00:01:04,230 --> 00:01:07,233
[dramatic music]

20
00:01:07,316 --> 00:01:09,110
Witness the heart

21
00:01:09,193 --> 00:01:11,529
and hope
of our planet.

22
00:01:15,533 --> 00:01:20,497
Travel back in time to see
how life defends itself...

23
00:01:23,082 --> 00:01:24,834
and win.

24
00:01:32,551 --> 00:01:38,139
WHEN THE EARTH BURNED

25
00:01:38,181 --> 00:01:43,937
[ethereal music]

26
00:01:44,062 --> 00:01:48,691
252 MILLION YEARS AGO

27
00:01:48,733 --> 00:01:54,072
LATE PERMIAN PERIOD

28
00:01:54,114 --> 00:01:58,076
[narrator]
252 million years ago.

29
00:01:58,201 --> 00:02:00,703
In this time everyone
the continents of the planet

30
00:02:00,786 --> 00:02:04,165
they are united
on a giant continental mass

31
00:02:04,248 --> 00:02:06,417
that extends from pole to pole.

32
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It's called Pangea.

33
00:02:13,424 --> 00:02:15,093
Its climate is scorching,

34
00:02:15,260 --> 00:02:17,762
about 11 degrees warmer
than today's.

35
00:02:17,804 --> 00:02:19,556
and its vast hinterlands

36
00:02:19,639 --> 00:02:21,933
they are dominated
through endless deserts.

37
00:02:23,101 --> 00:02:27,564
Life clings to continue,
but it is not an easy existence.

38
00:02:27,647 --> 00:02:31,734
[dramatic music]

39
00:02:31,776 --> 00:02:35,530
And something is about to happen

40
00:02:35,613 --> 00:02:39,159
that will make everything much worse.

41
00:02:41,745 --> 00:02:44,706
[upbeat music]

42
00:02:44,873 --> 00:02:46,833
Not all Pangea is sterile.

43
00:02:47,751 --> 00:02:49,460
Towards both poles

44
00:02:49,543 --> 00:02:52,672
temperatures are colder
and forests grow.

45
00:02:54,299 --> 00:02:56,551
Conifers cover
these northern hills.

46
00:02:56,593 --> 00:02:59,762
[bird singing]

47
00:02:59,845 --> 00:03:04,184
And under its branches
life prospers.

48
00:03:06,018 --> 00:03:09,689
[soft growl]

49
00:03:09,772 --> 00:03:11,858
A young gorgonopsid...

50
00:03:13,777 --> 00:03:15,195
with a mission...

51
00:03:18,406 --> 00:03:22,952
[playful music]

52
00:03:24,870 --> 00:03:26,873
...bother his brother.

53
00:03:29,875 --> 00:03:32,128
[soft growl]

54
00:03:32,253 --> 00:03:35,965
Oh well how about an attack
sneaking to his mother?

55
00:03:38,843 --> 00:03:40,637
These gorgonopsids
They are distant relatives

56
00:03:40,679 --> 00:03:42,680
and primitive mammals.

57
00:03:47,227 --> 00:03:48,978
And long before
of the dinosaurs...

58
00:03:49,061 --> 00:03:51,439
[yawn]

59
00:03:51,522 --> 00:03:54,734
...this is how it looked
a super predator.

60
00:04:00,364 --> 00:04:01,741
In this world,

61
00:04:01,824 --> 00:04:03,576
the only thing you fear
a gorgonopsid

62
00:04:04,660 --> 00:04:06,120
It is another gorgonopsid.

63
00:04:06,162 --> 00:04:08,122
[tension music]

64
00:04:08,205 --> 00:04:11,209
[grunt]

65
00:04:17,924 --> 00:04:21,928
♪♪♪

66
00:04:24,806 --> 00:04:30,103
[roar]

67
00:04:31,354 --> 00:04:33,273
Bigger than a tiger,

68
00:04:33,315 --> 00:04:36,025
this alpha has
battle scars

69
00:04:36,067 --> 00:04:38,945
from years of defending his position...

70
00:04:41,489 --> 00:04:43,825
as leader of this family.

71
00:04:43,867 --> 00:04:47,745
[soft music]

72
00:04:50,707 --> 00:04:54,210
Has spawned generations
of young gorgonopsids

73
00:04:54,335 --> 00:04:56,796
with this group
from three different mothers.

74
00:05:03,762 --> 00:05:06,014
In this overheated world,

75
00:05:06,139 --> 00:05:09,350
brought up his family
from the hot plains

76
00:05:09,433 --> 00:05:12,395
to find food and shade
in these skirts.

77
00:05:14,397 --> 00:05:17,483
[tension music]

78
00:05:19,610 --> 00:05:21,738
[grunt]

79
00:05:21,780 --> 00:05:24,741
But now he's smelling trouble.

80
00:05:27,452 --> 00:05:30,163
Lurking in the shadows,

81
00:05:30,246 --> 00:05:32,832
a younger male alone.

82
00:05:34,041 --> 00:05:36,169
This is your forest.

83
00:05:40,256 --> 00:05:44,302
The males will fight to the death
for the right to mate.

84
00:05:49,181 --> 00:05:51,225
This one waits to see

85
00:05:51,308 --> 00:05:55,605
if the old alpha has
signs of weakness.

86
00:06:05,448 --> 00:06:08,034
Not all creatures
of these northern forests

87
00:06:08,117 --> 00:06:10,203
They survive aggressively.

88
00:06:10,286 --> 00:06:13,664
[screeches]

89
00:06:13,789 --> 00:06:17,377
Some, like this Elph
of burrows,

90
00:06:17,460 --> 00:06:20,129
they have to fend for themselves
of his ingenuity.

91
00:06:21,714 --> 00:06:23,716
[soft growl]

92
00:06:26,928 --> 00:06:29,389
Play dead
It's one of the tricks.

93
00:06:30,556 --> 00:06:32,475
[sniffs]

94
00:06:39,357 --> 00:06:41,734
It's a good performance,

95
00:06:41,817 --> 00:06:43,486
If you can keep it...

96
00:06:49,033 --> 00:06:49,992
[squeaks]

97
00:06:50,075 --> 00:06:51,077
[dramatic music]

98
00:06:51,119 --> 00:06:52,745
Very late.

99
00:06:53,872 --> 00:06:56,082
- [screeches]
-[growls]

100
00:06:58,501 --> 00:07:02,797
[tension music]

101
00:07:02,839 --> 00:07:06,092
[loud growl]

102
00:07:06,175 --> 00:07:10,847
[tension music]

103
00:07:12,974 --> 00:07:14,517
Our young gorgonopsid

104
00:07:14,642 --> 00:07:16,727
has come face to face
with a giant

105
00:07:20,398 --> 00:07:22,525
A whole pack of them.

106
00:07:25,861 --> 00:07:27,613
Scutosaurus.

107
00:07:29,698 --> 00:07:31,451
They grow more than three meters
long,

108
00:07:31,534 --> 00:07:33,369
and they weigh more than a ton.

109
00:07:33,452 --> 00:07:36,330
These large herbivores
They are reptiles,

110
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and some of the creatures
largest on Earth.

111
00:07:43,046 --> 00:07:44,797
They are slow,

112
00:07:44,880 --> 00:07:46,632
but the creatures
this size...

113
00:07:47,967 --> 00:07:49,635
can be crushed
with ease.

114
00:07:52,596 --> 00:07:55,850
His frantic mom just noticed
that is not there.

115
00:07:55,933 --> 00:07:59,562
[roars]

116
00:08:01,647 --> 00:08:03,483
While
stay calm,

117
00:08:03,566 --> 00:08:06,277
the little one should
be fine

118
00:08:10,990 --> 00:08:14,243
But on the plains below
There is a problem brewing.

119
00:08:14,326 --> 00:08:16,204
[thunder]

120
00:08:16,246 --> 00:08:19,540
The pack can feel
the impending thunderstorm.

121
00:08:19,623 --> 00:08:22,210
And they get nervous.

122
00:08:22,335 --> 00:08:23,836
[thunder]

123
00:08:23,919 --> 00:08:26,464
Up in the mountains,
lightning is frequent.

124
00:08:28,716 --> 00:08:31,969
None of this is a good
news for the little one.

125
00:08:36,807 --> 00:08:40,937
[soft music]

126
00:08:40,979 --> 00:08:43,606
[narrator]
252 million years ago

127
00:08:43,648 --> 00:08:45,066
before
that modern humans

128
00:08:45,108 --> 00:08:46,275
They will walk the Earth,

129
00:08:47,777 --> 00:08:49,654
all continents
they are united

130
00:08:49,737 --> 00:08:52,990
on a continental landmass
giant called Pangea.

131
00:08:54,784 --> 00:08:57,036
It is a dry and desolate place.

132
00:09:00,456 --> 00:09:01,874
Except at the poles,

133
00:09:01,999 --> 00:09:04,377
where lush forests grow
of conifers.

134
00:09:09,340 --> 00:09:10,967
[thunder]

135
00:09:11,092 --> 00:09:13,386
Here a sudden storm

136
00:09:13,469 --> 00:09:15,930
scared the herd
of giant Scutosaurus.

137
00:09:16,055 --> 00:09:18,057
[grunts]

138
00:09:19,392 --> 00:09:22,728
Caught in the middle,
There is the little gorgonopsid.

139
00:09:23,937 --> 00:09:26,899
one wrong step
and could be crushed to death.

140
00:09:26,941 --> 00:09:32,905
[tension music]

141
00:09:35,699 --> 00:09:37,577
[roar]

142
00:09:42,957 --> 00:09:45,585
His scared mom
you must find it.

143
00:09:48,671 --> 00:09:50,673
[roars in the distance]

144
00:09:50,715 --> 00:09:52,508
see it

145
00:09:52,633 --> 00:09:56,596
and every instinct drives her
to save his son at all costs.

146
00:09:58,097 --> 00:10:02,602
[dramatic music]

147
00:10:09,150 --> 00:10:11,944
♪♪♪

148
00:10:13,946 --> 00:10:16,449
[crunch]

149
00:10:27,042 --> 00:10:30,796
[melancholic music]

150
00:10:30,921 --> 00:10:33,883
The mother managed to protect
to the little one.

151
00:10:37,011 --> 00:10:41,140
But in doing so,
He made the ultimate sacrifice.

152
00:10:44,227 --> 00:10:46,020
He doesn't want to leave her side.

153
00:10:46,103 --> 00:10:47,563
[whimper]

154
00:10:47,605 --> 00:10:51,692
[loud growl]

155
00:10:51,775 --> 00:10:54,904
But his father's call
echoes in the forest.

156
00:11:00,993 --> 00:11:04,664
The old alpha drives away the family
of the frightened herd.

157
00:11:10,711 --> 00:11:15,174
♪♪♪

158
00:11:19,511 --> 00:11:22,348
After the storm,
the sun sets

159
00:11:22,431 --> 00:11:25,768
and the sky shines
of a spectacular blood red.

160
00:11:27,770 --> 00:11:29,355
It is an ominous sign.

161
00:11:31,816 --> 00:11:33,943
not far away
of the gorgonopsid family,

162
00:11:34,026 --> 00:11:37,279
the forces of nature
they are going to create a show

163
00:11:37,321 --> 00:11:39,865
that will leave all life
on your knees.

164
00:11:41,951 --> 00:11:44,745
The great continent of Pangea,

165
00:11:44,787 --> 00:11:46,580
the only continental mass
of the world

166
00:11:46,705 --> 00:11:50,000
that has shaped life
for almost 50 million years...

167
00:11:51,543 --> 00:11:53,170
is being torn apart.

168
00:11:54,922 --> 00:11:56,632
[dramatic music]

169
00:11:56,757 --> 00:12:00,052
A vast fault system
It is transforming the landscape.

170
00:12:06,850 --> 00:12:08,686
For thousands of years,

171
00:12:08,728 --> 00:12:14,316
pulses of volcanic activity
they have produced enough lava

172
00:12:14,358 --> 00:12:16,652
how to cover
all of the United States

173
00:12:16,735 --> 00:12:18,154
in molten rock

174
00:12:18,237 --> 00:12:20,239
almost a kilometer
deep.

175
00:12:23,200 --> 00:12:25,703
Now, the whole flank
from the crack

176
00:12:25,745 --> 00:12:28,914
prepares for its eruption
biggest yet.

177
00:12:35,921 --> 00:12:37,590
The emissions from these volcanoes

178
00:12:37,715 --> 00:12:40,718
They already have a profound effect
about life.

179
00:12:43,262 --> 00:12:46,182
The vast quantities
of carbon dioxide that comes out

180
00:12:46,224 --> 00:12:49,769
they raise the temperature
atmospheric...

181
00:12:51,270 --> 00:12:52,480
what forces animals,

182
00:12:52,522 --> 00:12:54,023
like family
of gorgonopsids,

183
00:12:54,148 --> 00:12:55,775
to take extreme actions.

184
00:12:58,736 --> 00:13:03,282
High heat leads to alpha
to migrate higher.

185
00:13:05,075 --> 00:13:08,370
For every 300 meters you drive
to his family upwards,

186
00:13:08,453 --> 00:13:11,540
the temperature drops
almost two degrees.

187
00:13:14,001 --> 00:13:16,670
It's not just the heat
what threatens them.

188
00:13:16,712 --> 00:13:20,883
Volcano gases
destroy the ozone layer,

189
00:13:21,008 --> 00:13:23,260
and this father bears the damage

190
00:13:23,343 --> 00:13:25,763
too much UV radiation
on his back.

191
00:13:35,773 --> 00:13:38,275
Eventually,
the gorgonopsid family

192
00:13:38,317 --> 00:13:40,903
reach a higher place
and cooler to rest.

193
00:13:42,905 --> 00:13:44,907
But unlike heat,

194
00:13:44,990 --> 00:13:47,326
a threat followed them
all the way up.

195
00:13:49,077 --> 00:13:53,874
One that focuses exclusively
in the protective father.

196
00:13:53,957 --> 00:13:59,255
The desperate lone rival
has stalked all your steps,

197
00:14:00,422 --> 00:14:04,677
waiting for the right moment
to attack.

198
00:14:08,347 --> 00:14:10,516
[soft music]

199
00:14:10,641 --> 00:14:12,893
[narrator] The dawn comes
over the northern mountains

200
00:14:13,018 --> 00:14:15,771
in the hot and dry
continent of Pangea.

201
00:14:17,314 --> 00:14:19,817
The only continental mass
of the planet.

202
00:14:20,985 --> 00:14:22,653
Volcanic activity causes

203
00:14:22,736 --> 00:14:25,489
that a world already suffocating
be hotter.

204
00:14:27,366 --> 00:14:29,076
To find temperatures
colder,

205
00:14:29,118 --> 00:14:32,037
the gorgonopsid family
climb further into the hills.

206
00:14:37,418 --> 00:14:40,212
They wake up
in an unknown place

207
00:14:40,295 --> 00:14:42,006
and they are dying of hunger.

208
00:14:42,965 --> 00:14:45,092
No one has eaten in days...

209
00:14:45,134 --> 00:14:48,345
[screeches]

210
00:14:48,470 --> 00:14:50,848
But just when
they need it more,

211
00:14:50,931 --> 00:14:52,516
a small food appears.

212
00:14:54,059 --> 00:14:55,728
[grunt]

213
00:14:55,770 --> 00:14:57,479
[screech]

214
00:15:05,696 --> 00:15:08,782
This shouldn't be a problem
for the hungry alpha.

215
00:15:08,865 --> 00:15:11,744
[roar]

216
00:15:15,331 --> 00:15:17,917
But this creature
doesn't play fair

217
00:15:18,042 --> 00:15:20,252
can scale.

218
00:15:27,551 --> 00:15:29,595
And to rub it in
in the face...

219
00:15:42,899 --> 00:15:45,778
These little climbers
They are called Suminia.

220
00:15:45,861 --> 00:15:47,571
They are between
the first vertebrates

221
00:15:47,696 --> 00:15:49,239
who climbed the trees.

222
00:15:50,824 --> 00:15:52,993
Living up here requires
of a good balance,

223
00:15:53,076 --> 00:15:55,913
coordination,
and hands that can grasp.

224
00:15:59,750 --> 00:16:01,627
all that can
be tested

225
00:16:01,669 --> 00:16:04,713
with a fun game
to steal the pinion.

226
00:16:04,796 --> 00:16:09,468
[playful music]

227
00:16:11,721 --> 00:16:15,265
[screeches]

228
00:16:27,111 --> 00:16:29,989
However, these groves
old coniferous

229
00:16:30,031 --> 00:16:32,658
They are no longer a sanctuary
for the Suminia.

230
00:16:32,741 --> 00:16:35,077
[tension music]

231
00:16:35,119 --> 00:16:37,121
The trees
They are secreting resin.

232
00:16:38,372 --> 00:16:41,500
They do this when they are
under a lot of stress.

233
00:16:43,586 --> 00:16:45,504
[screeches]

234
00:16:52,469 --> 00:16:55,180
One would think that at this dry
and hot world

235
00:16:55,222 --> 00:16:58,100
could use a rain
to cool everything down.

236
00:17:01,395 --> 00:17:03,939
But the rain is part
of the problem.

237
00:17:05,482 --> 00:17:08,694
[rain]

238
00:17:13,074 --> 00:17:15,951
All volcanic eruptions
they have poisoned the air

239
00:17:15,993 --> 00:17:18,537
and have turned the rain
in acid.

240
00:17:26,211 --> 00:17:28,380
This strips
to the leaves of nutrients,

241
00:17:29,799 --> 00:17:32,217
and poisons the soil.

242
00:17:34,761 --> 00:17:36,805
The forests are dying.

243
00:17:40,684 --> 00:17:44,313
The huge Scutosaurus
They have nowhere to hide

244
00:17:44,396 --> 00:17:46,899
and acid rain
It burns their eyes.

245
00:17:47,024 --> 00:17:50,569
[roar]

246
00:17:59,120 --> 00:18:03,207
Nearby, the young male
is also in trouble.

247
00:18:06,793 --> 00:18:09,505
had to leave
his long chase of the alpha

248
00:18:09,630 --> 00:18:11,048
to find shelter.

249
00:18:12,299 --> 00:18:13,884
But there is nowhere to escape.

250
00:18:21,224 --> 00:18:23,936
The acid rain that burns
It's a clear sign

251
00:18:24,061 --> 00:18:26,021
that volcanoes
of the northern fault

252
00:18:26,146 --> 00:18:27,940
they are becoming
even more active.

253
00:18:32,153 --> 00:18:34,655
Throughout the vast
lava fields,

254
00:18:34,738 --> 00:18:36,782
new cracks appear.

255
00:18:38,575 --> 00:18:41,370
The ground itself burns.

256
00:18:42,705 --> 00:18:44,706
[sizzling]

257
00:18:44,789 --> 00:18:48,127
Molten rock ignites
huge expanses of coal

258
00:18:48,169 --> 00:18:49,503
below the surface...

259
00:18:50,921 --> 00:18:53,632
over almost a million
and a half square kilometers.

260
00:18:54,799 --> 00:18:57,636
[dramatic music]

261
00:18:58,929 --> 00:19:01,140
More coal is burned here

262
00:19:01,182 --> 00:19:04,393
that throughout
the Industrial Revolution.

263
00:19:07,145 --> 00:19:10,899
♪♪♪

264
00:19:13,026 --> 00:19:15,737
The deserts expand.

265
00:19:15,820 --> 00:19:17,239
The seas die.

266
00:19:19,450 --> 00:19:21,410
There is no place on Earth

267
00:19:21,493 --> 00:19:23,245
to hide
of this catastrophe.

268
00:19:27,166 --> 00:19:29,459
In the desert heat of Pangea

269
00:19:29,501 --> 00:19:33,630
the temperature arrived
at a lethal 60 degrees.

270
00:19:38,010 --> 00:19:40,721
From this death zone
expanding,

271
00:19:40,804 --> 00:19:44,850
all the life that can
is now migrating.

272
00:19:46,352 --> 00:19:47,978
[grunt]

273
00:19:48,979 --> 00:19:52,858
Walking at night,
To avoid the heat of the day,

274
00:19:54,651 --> 00:19:57,654
Scutosaurus herds
they try to escape

275
00:19:57,696 --> 00:19:59,907
towards the polar regions
colder.

276
00:19:59,949 --> 00:20:04,870
[soft music]

277
00:20:08,123 --> 00:20:09,791
Weeks pass.

278
00:20:12,878 --> 00:20:15,714
The days are brutal
and suffocating.

279
00:20:23,513 --> 00:20:26,433
The herds arrive
to the burning plains,

280
00:20:26,516 --> 00:20:28,810
just under the skirts
full of trees

281
00:20:28,852 --> 00:20:31,396
where the family
from gorgonopsids it takes refuge.

282
00:20:35,484 --> 00:20:38,278
When the harsh sun rises,

283
00:20:38,361 --> 00:20:41,073
everyone is looking for the same thing...

284
00:20:45,827 --> 00:20:47,246
...the shadow.

285
00:20:49,790 --> 00:20:51,875
When survival
It depends on that,

286
00:20:51,958 --> 00:20:55,587
the competition
through space it is intense.

287
00:20:58,631 --> 00:21:01,802
As the shadows move
during the day,

288
00:21:01,927 --> 00:21:05,222
these clumsy animals
They move to follow them.

289
00:21:10,143 --> 00:21:12,938
[suspense music]

290
00:21:13,063 --> 00:21:16,108
It's not good news
for the locals.

291
00:21:20,028 --> 00:21:21,863
The Elph are strong animals,

292
00:21:21,988 --> 00:21:24,032
that survive
on the burning plains

293
00:21:24,074 --> 00:21:26,535
digging burrows.

294
00:21:26,618 --> 00:21:29,162
But now,
the large Scutosaurus

295
00:21:29,204 --> 00:21:32,958
they are about to trample
their underground homes.

296
00:21:40,424 --> 00:21:43,260
[narrator]
252 million years ago.

297
00:21:44,678 --> 00:21:46,930
and the equatorial regions
of the Earth

298
00:21:47,013 --> 00:21:50,809
they became so hot
that cannot sustain life.

299
00:21:54,020 --> 00:21:57,524
The animals that can,
like these Scutosaurus,

300
00:21:57,566 --> 00:22:01,320
migrate towards temperatures
colder at the poles.

301
00:22:03,155 --> 00:22:05,657
But even here
they have to take refuge

302
00:22:05,740 --> 00:22:07,659
in the shade during the day.

303
00:22:10,370 --> 00:22:13,999
Under your feet,
Elphs live in tunnels.

304
00:22:15,417 --> 00:22:18,420
And these migrants are not
welcomed by the locals.

305
00:22:18,503 --> 00:22:19,588
[grunt]

306
00:22:22,298 --> 00:22:25,135
Now the sun moves the shadow

307
00:22:25,218 --> 00:22:28,680
and the Scutosaurus herd
gets closer to their homes.

308
00:22:36,271 --> 00:22:39,816
The little locals know
that if they don't do something,

309
00:22:39,899 --> 00:22:42,527
are in danger of being
crushed...

310
00:22:44,112 --> 00:22:46,073
[screeches]

311
00:22:46,198 --> 00:22:48,492
[grunt]

312
00:22:48,575 --> 00:22:50,994
[screech]

313
00:22:51,161 --> 00:22:53,246
And the Scutosaurus
They soon learn...

314
00:22:53,371 --> 00:22:54,790
[loud screech]

315
00:22:54,873 --> 00:22:57,959
...not to underestimate
to an angry Elph.

316
00:23:00,212 --> 00:23:01,963
[complains]

317
00:23:06,176 --> 00:23:09,554
[upbeat music]

318
00:23:15,685 --> 00:23:20,190
[soft music]

319
00:23:23,526 --> 00:23:25,695
In the wooded hills
from above,

320
00:23:25,778 --> 00:23:28,073
the gorgonopsid father
continue carrying

321
00:23:28,198 --> 00:23:29,991
to his hungry family
higher up

322
00:23:30,033 --> 00:23:31,410
in search of colder air.

323
00:23:32,577 --> 00:23:34,663
They have problems.

324
00:23:34,705 --> 00:23:35,997
Throughout the world,

325
00:23:36,080 --> 00:23:37,833
oxygen levels
they are going down,

326
00:23:37,958 --> 00:23:40,460
and although it is cooler
when going up,

327
00:23:40,502 --> 00:23:43,588
lack of oxygen means
that are sold out.

328
00:23:51,888 --> 00:23:56,393
[gasps]

329
00:23:59,062 --> 00:24:03,275
So the hungry alpha
smell blood.

330
00:24:06,611 --> 00:24:08,196
Gorgonopsids have
long skulls

331
00:24:08,363 --> 00:24:09,739
with huge jaws

332
00:24:09,781 --> 00:24:11,450
with fangs
15 centimeters.

333
00:24:11,575 --> 00:24:14,953
[loud growl]

334
00:24:15,036 --> 00:24:16,455
But his real superpower

335
00:24:16,497 --> 00:24:18,874
It's his extraordinary
sense of smell

336
00:24:19,750 --> 00:24:22,919
which allows them to track prey
miles away.

337
00:24:24,837 --> 00:24:27,299
Somewhere,
there is an injured animal,

338
00:24:27,382 --> 00:24:30,594
and you need to find it
for the good of his family.

339
00:24:34,889 --> 00:24:36,099
To your frustration,

340
00:24:36,141 --> 00:24:38,560
another gorgonopsid
came first.

341
00:24:43,439 --> 00:24:46,151
Worse still, it is the lone male.

342
00:24:53,867 --> 00:24:57,996
[grunts]

343
00:25:02,167 --> 00:25:05,545
It's clear
who won't give up his prize...

344
00:25:05,628 --> 00:25:08,048
[roar]

345
00:25:08,090 --> 00:25:10,175
...without a fight.

346
00:25:10,217 --> 00:25:13,178
[roar]

347
00:25:21,520 --> 00:25:23,522
The two desperate
predators

348
00:25:23,564 --> 00:25:25,857
they must face.

349
00:25:28,026 --> 00:25:31,154
This confrontation
It was seen coming a long time ago.

350
00:25:32,197 --> 00:25:34,366
[grunt]

351
00:25:34,408 --> 00:25:36,701
[roar]

352
00:25:36,784 --> 00:25:39,412
Then suddenly...

353
00:25:39,495 --> 00:25:42,832
[insect flutters]

354
00:25:42,874 --> 00:25:45,460
...clouds of insects
They fill the air.

355
00:25:47,796 --> 00:25:52,384
[suspense music]

356
00:25:52,509 --> 00:25:54,219
Just one thing

357
00:25:54,302 --> 00:25:56,555
can cause insects
they behave like this...

358
00:25:57,972 --> 00:26:00,934
[bang]

359
00:26:00,976 --> 00:26:02,644
An earthquake.

360
00:26:06,648 --> 00:26:11,528
[tension music]

361
00:26:15,949 --> 00:26:19,452
[bang]

362
00:26:19,577 --> 00:26:22,747
Gorgonopsids must run
to save their lives.

363
00:26:25,625 --> 00:26:29,087
But nothing can save them
of what is coming.

364
00:26:31,840 --> 00:26:37,053
[suspense music]

365
00:26:40,974 --> 00:26:43,685
While the old
supercontinent Pangea

366
00:26:43,727 --> 00:26:45,770
continues to tear itself apart...

367
00:26:47,773 --> 00:26:49,774
vast cracks
in the earth's crust

368
00:26:49,941 --> 00:26:52,402
they erupt
on an astonishing scale.

369
00:26:56,364 --> 00:26:57,782
Releasing without stopping

370
00:26:57,865 --> 00:27:00,118
even more dioxide
carbon, methane,

371
00:27:00,160 --> 00:27:02,787
and other lethal gases
to the atmosphere.

372
00:27:03,872 --> 00:27:07,542
[bang]

373
00:27:11,337 --> 00:27:14,424
[dramatic music]

374
00:27:14,466 --> 00:27:17,385
This intensifies
a global apocalypse.

375
00:27:26,060 --> 00:27:28,146
Temperatures skyrocket.

376
00:27:33,110 --> 00:27:37,280
In the hills, the old alpha
continues to flee from the heat.

377
00:27:38,323 --> 00:27:41,326
He has guided his family
up to here,

378
00:27:43,077 --> 00:27:45,830
but the problem
to migrate higher

379
00:27:45,872 --> 00:27:48,958
is that eventually
Your path is ending.

380
00:27:53,797 --> 00:27:55,882
[grunt at a distance]

381
00:27:55,965 --> 00:27:57,676
And waiting for him at the top

382
00:27:59,761 --> 00:28:01,346
is your old friend

383
00:28:02,597 --> 00:28:04,307
the lone male.

384
00:28:04,390 --> 00:28:07,727
[grunts]

385
00:28:07,769 --> 00:28:11,189
Even when your world
crumbles around him,

386
00:28:11,356 --> 00:28:13,983
your biological need
to be the alpha

387
00:28:14,066 --> 00:28:16,569
still conquers everything.

388
00:28:16,611 --> 00:28:20,699
[grunts and roars]

389
00:28:27,372 --> 00:28:31,126
[narrator]
The planet is burning.

390
00:28:31,209 --> 00:28:33,712
The rift volcanoes
from the north they erupted,

391
00:28:35,338 --> 00:28:38,675
yielding more than four million
of cubic kilometers of lava

392
00:28:38,758 --> 00:28:40,385
throughout the continent...

393
00:28:42,303 --> 00:28:45,724
and lighting the tanks
largest coal plants in the world.

394
00:28:48,518 --> 00:28:50,812
While the world burns
around you,

395
00:28:50,937 --> 00:28:54,899
rival gorgonopsids
They finally confront each other.

396
00:28:54,941 --> 00:28:57,819
[roar]

397
00:28:57,902 --> 00:29:01,531
And this time there is no going back.

398
00:29:01,614 --> 00:29:05,618
[dramatic music]

399
00:29:05,701 --> 00:29:07,787
[thunder]

400
00:29:07,829 --> 00:29:11,040
Maybe the lone male
be younger and more agile...

401
00:29:12,459 --> 00:29:16,254
but the alpha is the fighter
with more experience.

402
00:29:16,296 --> 00:29:20,675
[grunts]

403
00:29:25,597 --> 00:29:28,057
[roars]

404
00:29:31,727 --> 00:29:33,855
[thunder]

405
00:29:33,980 --> 00:29:37,400
[grunts]

406
00:29:40,654 --> 00:29:43,698
[grunts]

407
00:29:47,661 --> 00:29:49,245
[roar]

408
00:29:53,791 --> 00:29:55,126
[grunt]

409
00:29:58,380 --> 00:30:02,801
[roar at a distance]

410
00:30:05,345 --> 00:30:07,222
[roar]

411
00:30:09,307 --> 00:30:11,810
[thunder]

412
00:30:16,106 --> 00:30:19,484
Exhausted and seriously injured,

413
00:30:19,567 --> 00:30:21,361
the old alpha won.

414
00:30:21,403 --> 00:30:23,154
[soft growl]

415
00:30:29,702 --> 00:30:32,247
He continues to guide his family,

416
00:30:32,289 --> 00:30:34,332
but there's nowhere left to go.

417
00:30:38,169 --> 00:30:40,547
Your world is doomed

418
00:30:40,672 --> 00:30:42,715
and not even he
can save them.

419
00:30:42,840 --> 00:30:45,343
[thunder]

420
00:30:48,512 --> 00:30:51,015
Eventually,
northern eruptions

421
00:30:51,098 --> 00:30:53,852
they will free
more than 700 times

422
00:30:53,935 --> 00:30:55,645
the amount
carbon dioxide

423
00:30:55,687 --> 00:30:57,397
of what they have produced
humans

424
00:30:57,522 --> 00:30:59,315
in all our history.

425
00:31:03,611 --> 00:31:06,865
This extinction event
It is the worst blow to life

426
00:31:06,948 --> 00:31:09,784
that the planet has known.

427
00:31:12,162 --> 00:31:16,040
90% of all species
of the Earth are annihilated.

428
00:31:18,627 --> 00:31:20,795
Although the catastrophe makes
that life is impossible

429
00:31:20,878 --> 00:31:22,130
for the majority...

430
00:31:23,173 --> 00:31:26,885
some stubborn species
they manage to survive.

431
00:31:28,511 --> 00:31:33,683
[hopeful music]

432
00:31:39,689 --> 00:31:41,691
close relatives
of the Elph

433
00:31:41,733 --> 00:31:43,359
They are among the survivors.

434
00:31:44,611 --> 00:31:48,239
By burrowing and hibernating,
his species endured

435
00:31:48,364 --> 00:31:50,992
everything that volcanoes
they threw them

436
00:31:51,117 --> 00:31:52,911
and they found a way
to continue.

437
00:31:57,374 --> 00:31:59,208
This one event changed

438
00:31:59,291 --> 00:32:01,794
all address
of evolution,

439
00:32:01,836 --> 00:32:04,631
since the few survivors
they go on to establish

440
00:32:04,673 --> 00:32:07,258
all dynasties
of animals we know today.

441
00:32:11,721 --> 00:32:15,725
After 100,000 years,
the volcanoes cool down,

442
00:32:17,018 --> 00:32:20,271
but the world remains
a toxic wasteland.

443
00:32:21,939 --> 00:32:24,400
The atmosphere still has
carbon dioxide levels

444
00:32:24,442 --> 00:32:26,611
five times greater
than those of today.

445
00:32:32,116 --> 00:32:36,204
Millions of years pass
and slowly

446
00:32:36,287 --> 00:32:39,207
our amazing planet heals.

447
00:32:42,251 --> 00:32:45,797
With the help of the
humblest survivors...

448
00:32:46,673 --> 00:32:49,801
fungi, bacteria,

449
00:32:49,884 --> 00:32:52,303
and photosynthetic algae.

450
00:32:53,512 --> 00:32:57,058
[dramatic music]

451
00:32:58,726 --> 00:33:00,311
These tiny living beings

452
00:33:00,353 --> 00:33:02,855
prosper
in the carbon-rich atmosphere

453
00:33:02,938 --> 00:33:04,691
and consume constantly

454
00:33:04,774 --> 00:33:06,776
excessive gases
greenhouse effect.

455
00:33:10,738 --> 00:33:13,658
The Earth finally begins
to cool down.

456
00:33:17,746 --> 00:33:21,165
10 MILLION YEARS

457
00:33:21,290 --> 00:33:27,547
AFTER THE EARTH
IT BURNED

458
00:33:27,589 --> 00:33:29,507
[soft music]

459
00:33:29,632 --> 00:33:32,260
[grunt at a distance]

460
00:33:34,053 --> 00:33:36,681
10 million years
later,

461
00:33:36,764 --> 00:33:40,059
free of its poison
volcanic heritage,

462
00:33:40,101 --> 00:33:42,186
the Earth is reborn.

463
00:33:44,021 --> 00:33:46,274
The planet again
can accommodate

464
00:33:46,316 --> 00:33:48,526
a rich variety of habitats.

465
00:33:52,321 --> 00:33:54,615
In this empty paradise,

466
00:33:54,740 --> 00:33:58,286
life begins to recover
every corner of the planet...

467
00:34:01,288 --> 00:34:03,916
starting
to an extraordinary

468
00:34:03,958 --> 00:34:06,127
evolutionary explosion.

469
00:34:06,210 --> 00:34:11,132
[dramatic music]

470
00:34:19,015 --> 00:34:20,892
[narrator] They have passed
10 million years

471
00:34:21,017 --> 00:34:22,935
since the giants
northern eruptions

472
00:34:22,977 --> 00:34:24,228
They remained silent.

473
00:34:25,521 --> 00:34:27,148
It took all this time

474
00:34:27,190 --> 00:34:29,567
so that the seas
and the forests will recover...

475
00:34:30,734 --> 00:34:33,237
and they are full of life.

476
00:34:36,032 --> 00:34:38,076
On the coasts
of a shallow sea,

477
00:34:39,119 --> 00:34:41,037
the sand moves.

478
00:34:43,123 --> 00:34:47,085
Eggs, laid months ago,
They are hatching.

479
00:34:48,210 --> 00:34:50,296
[trills]

480
00:34:50,379 --> 00:34:52,673
It's a baby Cyamodus...

481
00:34:54,633 --> 00:34:57,678
a new type of reptile
with shell

482
00:34:57,761 --> 00:34:59,889
who has adopted a life
in the sea

483
00:35:02,684 --> 00:35:04,769
They lay their eggs in the sand,

484
00:35:04,811 --> 00:35:07,021
to protect them
of marine predators.

485
00:35:08,648 --> 00:35:12,401
[tension music]

486
00:35:12,443 --> 00:35:15,738
But today there are predators
everywhere.

487
00:35:20,952 --> 00:35:23,663
[soft growl]

488
00:35:23,746 --> 00:35:25,623
A female Dongusuchus.

489
00:35:26,999 --> 00:35:29,544
It is a new type of reptile
with feathers

490
00:35:31,671 --> 00:35:36,551
[suspense music]

491
00:35:41,555 --> 00:35:46,644
He is watching her
another Dongusuchus.

492
00:35:50,606 --> 00:35:51,899
A male.

493
00:35:51,982 --> 00:35:54,318
[soft growl]

494
00:35:54,443 --> 00:35:59,490
Does not seek to eat,
Look for a lunch date.

495
00:36:02,201 --> 00:36:05,163
With its brilliant plumage
and great steps,

496
00:36:05,246 --> 00:36:06,789
He hopes to impress her.

497
00:36:11,877 --> 00:36:14,964
She's still not sure.

498
00:36:19,468 --> 00:36:21,762
But he has more steps.

499
00:36:21,845 --> 00:36:25,433
[romantic music]

500
00:36:26,725 --> 00:36:29,937
Now, new types
of gliding reptiles,

501
00:36:29,979 --> 00:36:34,525
called proto-pterosaurs,
They head to the sand.

502
00:36:36,527 --> 00:36:37,820
[soft growl]

503
00:36:39,071 --> 00:36:40,781
The beach is full.

504
00:36:43,993 --> 00:36:47,038
But this boy doesn't give up
with their mating dance.

505
00:36:52,418 --> 00:36:54,378
Time to give it your all.

506
00:36:59,049 --> 00:37:02,386
[soft growl]

507
00:37:03,596 --> 00:37:06,182
[bang]

508
00:37:06,265 --> 00:37:07,808
[screech]

509
00:37:17,068 --> 00:37:20,404
Wow, someone real
He didn't like her dancing.

510
00:37:23,324 --> 00:37:28,329
[soft music]

511
00:37:33,751 --> 00:37:35,836
Cymbospondylus.

512
00:37:39,590 --> 00:37:42,593
A new type
giant marine reptile

513
00:37:43,677 --> 00:37:45,972
that will end
to dominate the seas

514
00:37:46,055 --> 00:37:50,059
during the next
157 million years.

515
00:37:53,228 --> 00:37:56,190
[hopeful music]

516
00:37:56,273 --> 00:37:59,151
in the woods
and in the mountains,

517
00:37:59,234 --> 00:38:02,738
in the water and in the air,

518
00:38:02,821 --> 00:38:06,367
the reptiles have taken advantage
this moment.

519
00:38:10,996 --> 00:38:12,581
If there is a moment

520
00:38:12,664 --> 00:38:14,542
in history
of life on Earth

521
00:38:14,625 --> 00:38:17,461
that summarizes
its infinite resistance...

522
00:38:18,754 --> 00:38:20,923
is this.

523
00:38:23,175 --> 00:38:26,429
♪♪♪

524
00:38:26,512 --> 00:38:33,269
MODERNITY

525
00:38:34,603 --> 00:38:36,939
Just 200 years ago,

526
00:38:36,981 --> 00:38:39,191
the Earth had some
from the lowest levels

527
00:38:39,316 --> 00:38:42,486
carbon dioxide
that have ever existed.

528
00:38:46,657 --> 00:38:48,993
[bird singing]

529
00:38:51,287 --> 00:38:54,123
But since
the Industrial Revolution,

530
00:38:54,206 --> 00:38:57,168
have increased more than 50%.

531
00:39:00,838 --> 00:39:03,591
[horns]

532
00:39:07,594 --> 00:39:11,140
Compared to history
of life on Earth,

533
00:39:11,223 --> 00:39:13,851
dioxide levels
today's carbon

534
00:39:13,934 --> 00:39:15,436
They are not high yet.

535
00:39:19,857 --> 00:39:22,109
But it's the speed of change

536
00:39:22,151 --> 00:39:25,279
what challenges
to all living beings.

537
00:39:26,572 --> 00:39:29,825
[dramatic music]

538
00:39:34,163 --> 00:39:37,208
Recently, action was taken.

539
00:39:40,502 --> 00:39:42,171
In the coming years,

540
00:39:42,254 --> 00:39:44,548
emissions could
stop rising...

541
00:39:46,926 --> 00:39:49,011
but the gases
extra greenhouse effect

542
00:39:49,094 --> 00:39:51,055
will continue in the atmosphere

543
00:39:51,138 --> 00:39:53,015
for decades,

544
00:39:53,057 --> 00:39:55,559
perhaps even for centuries.

545
00:40:00,147 --> 00:40:02,024
For these levels to drop,

546
00:40:02,107 --> 00:40:04,485
the key lies in skill
of our planet

547
00:40:04,568 --> 00:40:06,904
to absorb
carbon dioxide.

548
00:40:11,408 --> 00:40:12,993
in the peat bogs

549
00:40:13,035 --> 00:40:14,537
and in the meadows
of seagrasses.

550
00:40:15,829 --> 00:40:17,873
In the oceans and in the forests.

551
00:40:18,916 --> 00:40:21,460
Nature already has
the best tools

552
00:40:21,543 --> 00:40:22,878
to change course

553
00:40:23,003 --> 00:40:24,338
of greenhouse gases
greenhouse.

554
00:40:27,007 --> 00:40:29,552
Protect and reinforce
these habitats

555
00:40:29,677 --> 00:40:31,720
is the next big challenge

556
00:40:31,803 --> 00:40:33,931
in the fight against
of global warming.

557
00:40:37,434 --> 00:40:41,689
♪ I see green trees ♪

558
00:40:41,814 --> 00:40:44,275
♪ Red roses too ♪

559
00:40:44,400 --> 00:40:50,322
♪ I see them bloom
for me and for you ♪

560
00:40:50,405 --> 00:40:54,410
♪ And I think ♪

561
00:40:54,493 --> 00:41:01,375
♪ What a wonderful world ♪

562
00:41:01,458 --> 00:41:06,589
♪ Yes, I think ♪

563
00:41:06,672 --> 00:41:11,719
♪ What a wonderful world ♪


