The Traits That Spawned the Age of Mammals - S5.E17 - Eons
Lots of the traits we think of as defining us as mammals show up pretty early, during the time of the dinosaurs. And, in some cases, they show up a lot earlier and in things that weren’t mammals at all.
The Traits That Spawned the Age of Mammals - S5.E17 - Eons
July 21, 2021
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