This planet once played host to a massive dinosaur that packed more than 500 teeth into its jaws. That might sound like a terrifying prospect at first, but the creature in question wasn't a vicious ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The “Jurassic Park” image of a Tyrannosaurus ...

A new study reveals that as vegetation changed over millions of years, some plant-eating dinosaurs adapted by evolving faster ...

The plant-eating dinosaur Fruitadens wouldn’t strike much fear into a poodle, let alone your average dinosaur. Less than a meter long and weighing under a kilogram, Fruitadens seems wholly ...

Paleontologists have long wrestled with the challenge of identifying the genders of dinosaurs from the fossils they leave ...

Spinosaurid dinosaurs were able to develop up to three generations of teeth at the same time, a high replacement rate that explains why so many teeth of this type have been found in Cretaceous sites.

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 ...

For carnivorous dinosaurs, staying sharp was of the utmost importance. Whether they were slicing flesh from the flanks of their prey or crushing the bones of their victims into splinters, the business ...

AUSTIN (KXAN) — Ancient titans once roamed the Earth, consuming plants and animals in order to survive. A new study from the University of Texas is helping paint a picture of ancient life by looking ...

Dinosaurs may have gone extinct 65 million years ago thanks to a massive asteroid impact, but one of the last species on the planet had something in common with one of today's most fearsome creatures ...

What did long-necked dinosaurs eat—and where did they roam to satisfy their hunger? A team of researchers has reconstructed the feeding behavior of sauropods using cutting-edge dental wear analysis.

Learn how researchers can determine what the atmosphere was like when dinosaurs roamed the Earth from the isotopes in their teeth. Trapped in the enamel of fossilized dinosaur teeth is a fascinating ...