How Plankton Created A Bizarre Giant of the Seas

Eons

10th November 2020 10 mins Season 4 Episode 34

At more than 2 meters long, Aegirocassis was not only the biggest radiodont ever, but it also may have been the biggest animal in the Early Ordovician. This bizarre marine giant may have only been possible, thanks to a major revolution among some of the tiniest organisms in the world.

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Season 4 · Episode 35

The Rise and Fall of the Tallest Mammal to Walk the Earth

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.

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