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Shellfish Surprise: Common 'Herbivore' Dinosaur Found To Snack On Crustaceans

"I immediately said, 'Oh, no, no, it can't be crustaceans.' That was my knee jerk reaction," a paleontologist said. The prehistoric snacking was likely intentional and linked to mating behaviors.
A duck-billed dinosaur skeleton, which the researchers think ate crustaceans, on display in 2009 at the Venetian Resort Hotel Casino in Las Vegas, Nevada. / Ethan Miller / Getty Images

Fossilized dinosaur feces are challenging some basic assumptions about dinosaur eating habits.

Hadrosaurs, a kind of duck-billed dinosaur, are among the most common herbivores of the Cretaceous period. But new research suggests that actually, these animals also chowed down on crustaceans. The prehistoric snacking was likely intentional and linked to mating behaviors.

The scientists found tell-tale crustacean shell

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