A dinosaur egg laid 70 million years ago holds the remains of an "exquisite" embryo that shows how dinosaurs positioned ...

Fossils reveal dinosaurs were flourishing in diverse ecosystems right up until the asteroid impact ended their reign.

Top paleontologists have discovered that mating between some species of prehistoric behemoths was so violent that they ...

T.rex lived longer and took more time to reach its maximum size than previously thought, according to new research.

A new study reveals that the Tyrannosaurus rex took up to 40 years to fully grow.

There is no question that Tyrannosaurus rex got big. In fact, this fearsome dinosaur may have been Earth's most massive land ...

This video ranks a wide range of dinosaurs by comparing their physical traits, behaviors, and ecological roles. Factors such ...

For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of ...

An analysis of growth rings in the leg bones of 17 Tyrannosaurus rex individuals reveals that the dinosaurs matured much more ...