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Eons
Animals Are Older Than We Thought
Season 6
Episode 13
What are animal-like fossils doing in rocks a billion years old, and what does that mean for our understanding of their evolution and geologic time itself? Turns out, there might've been a long, slow-burning fuse that ultimately ignited the Cambrian Explosion.
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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.