Did dinosaurs lie down? © Getty Images

Did dinosaurs lie down?

What do you call a sleeping dinosaur? A Dino-snore. Zzzz...

Asked by: Roger Sayers, Tunbridge Wells 

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There is no way to tell from a fossil whether the animal was sleeping when it died or not. But it seems likely that the four-legged dinosaurs probably mostly slept standing up to allow them to respond to predators more rapidly. Two-legged dinosaurs like T-Rex almost certainly lay down though. Balancing while you are asleep is just too tricky.


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