How many T. rexes were there? Billions.
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Over approximately 2.5 million years, North America likely hosted 2.5 billion Tyrannosaurus rexes, a minuscule proportion of which have been dug up and studied by paleontologists, according to a UC Berkeley study. (Image by Julius Csotonyi , courtesy
Teen angst? T-Rex, other large dinosaurs out-competed smaller rival species, study finds-Tech News , Firstpost
Why is T. rex everyone's favorite dinosaur? Aren't there like a billion cooler dinosaurs? - Quora
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How many T. rex were there? Billions, it turns out
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A total of some 2.5 billion T. rex roamed the Earth, study finds
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