When did Eons Season 4 Episode 21 air?
Eons Season 4 Episode 21 aired on July 7, 2020.
Eons
Join hosts Hank Green, Kallie Moore, and Blake de Pastino as they take you on a journey through the history of life on Earth. From the dawn of life in the Archaean Eon through the Mesozoic Era — the so-called “Age of Dinosaurs” -- right up to the end of the most recent Ice Age. The evolutionary history of mammals including humans and other modern species is explored with these amazing paleontology experts.
Created by: Hank Green
Season 4 · Episode 21
How the Walrus Got Its Tusks
Jul 7, 2020·10m
The rise and fall of ancient walruses, and how modern ones got their tusks, is a story that spans almost 20 million years. And while there are parts of the story that we’re still trying to figure out, it looks like tusks didn’t have anything to do with how or what these animals ate.
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How long is Eons Season 4 Episode 21?
This episode runs for approximately 10 minutes.
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