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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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7:23
Hidden in rocks may have animal kingdom’s oldest known predator.
9:26
Hidden in rocks may have animal kingdom’s oldest known predator.
8:09
We explore what we have in common with our ancient cousins.
9:19
We have become the ultimate niche builders.
9:58
Beneath their shell, the crustaceans hold an evolutionary mystery.
7:20
The answer is part of a decades-long debate.
10:04
In Australia, evolution built a family of deadly predators.
7:28
We focus on the DNA we got from our Neanderthals.
7:20
Seahorses are one of the ocean's worst swimmers but their origin story is great.
8:21
In recent years, Archaea's connection to us has been pretty huge and surprising.
8:53
Charles Darwin encountered a tiny fox-like creature during his famous voyage.
8:59
While some fishapods were crawling out of water, others were diving right back in.