Killer Cancer in the Cretaceous

By Kathy A Svitil
Nov 3, 2003 6:00 AMNov 12, 2019 6:05 AM

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Giant predatory dinosaurs were killers without equal, but they stood at the mercy of at least one foe: their own imperfect bodies. On October 23, a team of paleontologists and pathologists announced that they had discovered a massive, possibly lethal brain tumor in the fossilized skull of a Gorgosaurus, a 25-foot-long relative of Tyrannosaurus rex that lived 72 million years ago.

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