The Rise and Fall of the Tallest Mammal to Walk the Earth - S4.E35
It arose from rhino ancestors that were a lot smaller, but Paraceratherium would take a different evolutionary path. Believe it or not, it actually became so big that it probably got close to what scientists think might be the actual upper limit for a land mammal.
The Rise and Fall of the Tallest Mammal to Walk the Earth - S4.E35
November 19, 2020
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