News Paleontology

Flexible molars made chewing champions out of duck-billed dinosaurs

Tiny scratches in the fossilized teeth of Edmontosaurus suggest these large herbivores may have had an unusual way of chewing

By Jenny Lauren Lee

- More than 2 years ago

Duck-billed dinosaurs may have been the sheep of their ecosystems, instead of the deer.

DENTAL EXAM Careful studies of microscopic scratches in the teeth of Edmontosaurus, a duck-billed dinosaur that lived during the Late Cretaceous, show how the animal’s jaws worked and may shed light on what the dinosaurs ate.