Season 5 · Episode 17 of 31
Aired Jul 21, 2021
The Traits That Spawned the Age of Mammals
Wed, Jul 21, 2021
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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.
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Airs
Wed, Jul 21, 2021
Show
PBS Eons
246 episodes
Episode
S5 · E17
in PBS Eons