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But around 350 million years ago, that balance was interrupted
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Nova

But around350 million years ago, that balance was interrupted. Leading to a crisisthat...

Nova • S50E13 • 1974
But around350 million years ago, that balance was interrupted. Leading to a crisisthat would threaten the survival of all life on Earth. ♪ ♪

Full Transcript

00:00:01.000 --> 00:00:03.467
But around 350 million years ago
00:00:03.467 --> 00:00:07.002
that balance was interrupted
00:00:09.004 --> 00:00:12.007
Leading to a crisis that would threaten the survival
00:00:12.007 --> 00:00:15.000
of all life on Earth
00:00:17.005 --> 00:00:22.000
Duration
23 seconds
Views
22
Timestamp in Movie
00:41:26
Uploaded
Feb 03, 2026
Season
50
Episode
13
Genres
documentary

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Movie Summary

Science documentaries about various topics.
S50 • E15 Because subtle changes in Earth's orbit alter the amount of sunlight reaching its surface. - Nova 00:30
Because subtle changes in Earth's orbit alter the...
S50 • E14 The period immediately after the Permian is the Triassic period, and it was very, very hot. - Nova 00:24
The period immediately after the Permian is the Triassic...
S46 • E16 Detailed imagery beamed back by New Horizons - Nova 00:17
Detailed imagery beamed back by New Horizons
S50 • E13 The rapid spread of terrestrial plant life has left Earth a changed planet. - Nova 00:09
The rapid spread of terrestrial plant life has left Earth a...
S50 • E13 In the Southern Hemisphere, ice sheets form. - Nova 00:22
In the Southern Hemisphere, ice sheets form.
S50 • E14 LOOY: We, for instance, know that there were forests growing on the South Pole, and to make that happen, you need a warm planet. - Nova 00:11
LOOY: We, for instance, know that there were forests growing...
S50 • E15 They begin to farm. - Nova 00:52
They begin to farm.
S46 • E16 It looks like there's material - Nova 00:20
It looks like there's material
S50 • E11 For up to half a billion years, this oxygen has been trapped in the oceans. - Nova 00:10
For up to half a billion years, this oxygen has been trapped...
S46 • E14 On board the space shuttle Atlantis, - Nova 00:09
On board the space shuttle Atlantis,
S50 • E02 ♪ ♪ And Marc and Maram discover that these stones may demonstrate additional astronomical knowledge. - Nova 00:13
♪ ♪ And Marc and Maram discover that these stones may...
S50 • E14 WHITESIDE: Temperatures on land would be 120 degrees Fahrenheit, possibly up to 140, with heat waves on top of that. - Nova 00:52
WHITESIDE: Temperatures on land would be 120 degrees...
S50 • E11 But now, increasing amounts are free to escape. - Nova 00:28
But now, increasing amounts are free to escape.
S50 • E02 BUIE: That small stone there is exactly north of this stone. - Nova 00:24
BUIE: That small stone there is exactly north of this stone.
S50 • E13 As the ice sheets expand and contract, over millions of years, sea levels fluctuate, creating huge deltas where vast swamp forests spring up... - Nova 00:15
As the ice sheets expand and contract, over millions of...
S46 • E12 We saw bright highlands, but they had dark drainage channels. - Nova 00:07
We saw bright highlands, but they had dark drainage channels...
S46 • E19 In the very upper part of the bluffs, - Nova 00:11
In the very upper part of the bluffs,
S50 • E07 Only four hours earlier, they photographed this five-year-old male gear-free. - Nova 00:14
Only four hours earlier, they photographed this...
S50 • E13 ...covering millions of square miles......and giving rise to a whole host of new plant species that thrive in these wet conditions. - Nova 00:16
...covering millions of square miles......and giving rise to...
S46 • E12 When you're looking at it, - Nova 00:14
When you're looking at it,