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How do we know the T-Rex was a carnivore?

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One of the largest known carnivorous dinosaurs, T. rex reigned during the late Cretaceous Period, 65 million years ago. ... Academy of Science, Burnham and his colleagues unveiled direct evidence of T. rex's predatory nature: a T. read more

‘T. rex had a mouth full of serrated teeth; the largest tooth of any carnivorous dinosaur ever found was 12 inches (30 centimeters) long. But not all teeth of T.rex performed the same function. read more

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