Big John, the world’s largest triceratops, suffered from a dinosaur competitor, fossils believe

About 60% of the skeletal remains of Greater John were found. Here you can see TriceratopsThe whole skeleton after the restoration work. (Image credit: Zoic LLC)

A tough encounter with a rival dinosaur may explain why Big John is the most popular Triceratops A new study has found that the skeleton ever found has a keyhole-shaped hole in the frill.

This fight took place more than 66 million years ago, but scientists think they know the identity of the attacker: it was probably another Triceratopsaccording to a study published online Thursday (April 7th) in the journal Scientific reports (opens in a new tab).

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