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Scientists discover exactly how many Tyrannosaurus rex roamed the Earth – 7NEWS.com.au

‘That’s a lot of teeth. That’s a lot of claws.’

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One Tyrannosaurus rex seems scary enough. Now picture 2.5 billion of them. Thats how many of the fierce dinosaur king probably roamed Earth over the course of a couple million years, a new study finds.
Using calculations based on body size, sexual maturity and the creatures energy needs, a team at the University of California, Berkeley figured out just how many T. rex lived over 127,000 generations, according to a new study in the journal Science. Its a first-of-its-kind number, but just an estimate…

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