Millions of years after the last dinosaur roamed the earth, a new generation of killer animals rose to power. The Eocene, between 56-34 million years ago, was ruled not by killer reptiles but by a new ...
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Built like tanks, dumb as lizards: These ancient “hell pigs” crushed bones and ruled North America with brute force
Thirty million years ago, a massive, tusked predator roamed the floodplains of what is now North America. Standing over six feet long and weighing more than a ton, Archaeotherium—colloquially known as ...
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