Ologies with Alie Ward
Castorology (BEAVERS) with Rob Rich
Rob Rich
About 33 million years ago, I believe, is when the beavers really started diversifying. And a lot of rodents generally, that was a really time of... rodent diversification. And so we had beavers, one that was kind of more recent times, the castoroides that lived just south of the glacial ice sheets and whatnot.
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