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Eons
The Huge Extinctions We Are Just Now Discovering
Season 6
Episode 8
What graptolites tell us is a story of incredible changes in the ocean, of periods where the oceans became poisonous and suffocating before eventually clearing up again. They unlock extinctions and recoveries that scientists didn't see. And, most of all, they show us how unpredictable the Silurian period really could be.
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12:11
Nobody had ever found a specimen like Borealopelta before.

7:05
Untangling the origins of Beelzebufo -- the giant frog that lived alongside the dinosaurs.

10:43
To try to solve the puzzle of Lark Quarry, experts have turned to paleoichnology.

7:42
A story that spans almost 20 million years.

9:20
How were they able to survive in this harsh environment?

9:24
This period was anything but boring.

7:23
These animals truly ruled the Earth, becoming both abundant and diverse.

10:44
The key to solving the puzzle of Precambrian life was a tiny bit of fossilized fat.

9:11
The two viruses that we’ve had for millions of years.

9:31
The arrival of plants on land would eventually help cause a massive extinction event.

8:27
Cerro Ballena has over 40 skeletons of marine mammals from the Late Miocene Epoch.

7:59
Part of a secret to our success as a species has been our early experimentation with food.