The cast of the skull of Nigersaurus. The fossil skull of Nigersaurus was one of the first dinosaur skulls to be digitally reconstructed from CT scans. Photograph by Ira Block, Nat Geo Image ...

Fossilized dinosaur teeth are turning out to be much more than ancient leftovers — they’re helping scientists figure out what these massive animals ate, how they coexisted, and even how far they might ...

Gigantic plant-eating dinosaurs called sauropods took yearly jaunts to high ground to escape drought, new research suggests. By analyzing fossilized dinosaur teeth, researchers determined that the ...

A meat-eating dinosaur that was one of the last to walk Earth replaced its teeth as often as modern sharks do, scientists have discovered. Majungasaurus, which lived between 66 and 70 million years ...

If the thought of a voracious, razor-toothed dinosaur ripping into its prey isn't scary enough, consider a venomous dinosaur. That's what some scientists propose after discovering an unusual fossil in ...

What to expect when you're expecting a baby dinosaur? Expect to wait. That's the conclusion of a study by researchers at Florida State University who determined how long it took dinosaurs to hatch ...

This dental undoing changed the mealtime options for this dinosaur, which lived about 160 million years ago. As a baby, L. inextricabilis was likely an omnivore or carnivore, but once it lost its ...