Over the years, scientists have found examples of cancerous tumors within the fossilized bones of ancient dinosaurs. A new study analyzes the fossil of the duck-billed hadrosaurid Telmatosaurus ...

Enigmacursor darted around North America in the Late Jurassic 145-150 million years ago and its skeleton is now on display in ...

But let the dinosaurs serve as an example of what happens when Earth changes too fast — a cautionary story for climate change today. “Rapid climate change, no matter how it happens, ...

In a groundbreaking discovery, paleontologists unearthed a 93-million-year-old crocodile fossil in Queensland, Australia. The ancient predator, named Confractosuchus Sauroktonos, or ‘broken ...

Before the K-T extinction, dinosaurs had to endure another mass extinction in the early Triassic. And they did so brilliantly.

For example, both birds and crocodilians—the closest living relatives of the extinct dinosaurs—have the types of retinal receptors needed to see in color. So dinosaurs most likely had color ...

Dinosaurs long dominated Earth's land ecosystems with a multitude of forms including plant-eating giants like Argentinosaurus, ... For example, Herrerasaurus was a 20-foot (6-meter) ...