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T. rex may have had lips like a modern lizard’s

Like most reptiles, the dinosaurs could have kept their chompers hidden

An illustration of a Tyrannosaurus eating a smaller dinosaur with half of that dino's body visible.

A Tyrannosaurus engulfs a young Edmontosaurus with its huge, lipped mouth. Dinosaurs like Tyrannosaurus have long been portrayed as lipless, but new research suggests this wasn’t so.

Mark P. Witton

By Jake Buehler

- More than 2 years ago

Read another version of this article at Science News Explores

In movies and TV shows, Tyrannosaurus rex often sports a fleet of big, sharp teeth that are almost always on display.