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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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11:27
This small change in our appearance has helped shape the evolution of our entire lineage.
7:53
It arose from rhino ancestors, but Paraceratherium took a different evolutionary path.
8:48
Aegirocassis may have been the biggest animal in the Early Ordovician.
6:46
What is it about the crab’s form that makes it so evolutionarily successful?
7:52
We’ve only started to get to the bottom of how clubs worked and how it developed.
9:48
How and why does botanical carnivory keep evolving?
8:54
Our primate family tree actually originated here!
8:23
The horns probably had a purpose - one that rodents would likely benefit from today.
6:27
How did this giant marine reptile end up high in the Andes Mountains?
9:43
What if the rock art drawings of strange animals really existed?
8:48
How did Thrinaxodon and Broomistega become entombed together?
9:20
Fermented foods opened up a whole new nutritional landscape for us.