The only known cannibal among dinosaurs replaced its pearly whites more often than scientists expected, and so did some other carnivores. By Katherine Kornei If there was a tooth fairy in the ...
WASHINGTON (Reuters) - The dreaded dinosaur Allosaurus was the scourge of the Jurassic Period landscape some 150 million years ago, an apex predator just as Tyrannosaurus rex was 80 million years ...
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