Dinosaur bones are like trees—every year is represented by a new ring, and paleontologists can count those concentric circles ...

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

A new study reveals Tyrannosaurus rex took 40 years to reach full size, not 30, as previously thought. Researchers analyzed ...

When you hear the word "dinosaur," the first thing that might spring to mind is a hulking skeleton like Sue the T rex in ...

The behemoth dinosaurs grew more slowly and had longer lifespans than previously thought, a new study suggests ...

Tyrannosaurus rex is arguably the world’s most famous dinosaur, yet paleontologists are still learning more about this giant ...

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

Dinosaurs haven’t roamed the Earth for millions of years, but the nature of their reign has sparked no shortage of controversial debates among paleontologists that remain unresolved today. Late last ...

A track for live horse racing in suburban Seattle turned prehistoric over the weekend as more than 200 people ran down the track cloaked in inflatable Tyrannosaurus rex dinosaur costumes. The 2023 ...

By counting visible and hidden rings, researchers found that T. rex did not reach full size until 35 to 40 years of age.

The Tyrannosaurus rex is often shown baring massive, sharp teeth, like the ferocious creature in "Jurassic Park." But new research suggests that this classic image might be wrong.The teeth on T. rex ...