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Giant Tyrannosaur Discovered in North America Is The Largest of Its Era
A giant tyrannosaur in the late Cretaceous, 74-75 million years ago. (Chase Stone) A new analysis of a shinbone from the oldest known giant tyrannosaur in North America suggests that the 'king of ...
Why would vestigial arms need such biceps’? Some palaeontologists now find themselves drawn back to the theory that the limbs were involved in reproduction, perhaps as subtle signalling devices to ...
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