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 ...

Dinosaur fossils have been dug up for well over a century, but every so often something turns up inside them that throws everyone a bit. You expect bones, maybe teeth, maybe the odd imprint. In other ...

An unprecedented fossil of a baby dinosaur curled up perfectly inside its egg is shedding more light on the links between dinosaurs and birds. The 70-million-year-old fossil preserves the embryonic ...

Researchers have found some of the biggest dinosaur footprints ever. They are so huge that an adult could curl up inside one ...

Megaraptorans were known for their elongated skulls and powerful claws. Paleontologists in Argentina have discovered a new predatory dinosaur -- the fossils of which contained a crocodile bone within ...

WASHINGTON — The rare discovery of eggs inside a dinosaur has given scientists new clues about the reproductive biology of the creatures and more support for the theory that birds came from dinosaurs.

Whatever happened to the duck-billed dinosaur, it was a real pain in the butt. Many of the spines sitting atop the animal’s tail vertebrae had been fractured. The dinosaur, known as Olorotitan to ...

The filmmakers of the original Jurassic Park movies had a rule: You always treat the dinosaurs as animals. "Normally, we yell at each other if somebody says 'monster' instead of 'animal,' because they ...

Extinct for millions of years, dinosaurs continue to fascinate as scientists struggle to understand the creatures that went from domination to extinction seemingly overnight. This four-part ...