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 ...

Dinosaurs have long vanished from Earth, but they are still objects of huge interest for researchers. Tyrannosaurus rex, especially, has been a source of huge debate, specifically regarding its ...

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WASHINGTON (Reuters) -Tyrannosaurus subdued prey with raw power, using bone-crushing bite force. But other meat-eating dinosaurs that rivaled T. rex in size used different approaches. Giganotosaurus ...