Brandon Specktor

Scientists have discovered rare fossil evidence of dinosaur cannibalism in a large quarry in Colorado.

In a new study published today (May 27) in the journal PLOS ONE, researchers examined dinosaur bones from the Mygatt-Moore Quarry near the Utah-Colorado border, paying close attention to any bite marks that were present. Many bones bore the bites of theropod dinosaurs (a large group of bipedal carnivores). In some cases, the team wrote, both the biter and the bitee were of the same genus — the predatorial Allosaurus — providing some “extremely rare” fossil evidence of dinosaur-on-dinosaur cannibalism.

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