A team of researchers reports that huge tooth marks on Tyrannosaurus rex indicate the ancient giant dinosaurs may have cannibalised one another.
Nicholas R Longrich of Yale University said the marks were the kind that any big carnivore could have made, but “T rex was the only big carnivore in western North America 65 million years ago”.
Longrich and colleagues reported their findings in Friday’s edition of the journal PLoS ONE.
They found 17 fossils with deep V-shaped gouges of a type identified as being made by T rex. Of those, four were remains of T rex themselves.
The researchers said it seems likely the marks were made during scavenging from a dead dinosaur.
They added it is possible that combat led to casualties, with the dead becoming convenient sources of food for the victors.
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Posted by Dinosaurs World at 7:34 PM