Pioneering techniques used in this research may soon be applied to other dinosaur fossils and alter the course of ...

Tyrannosaurus rex lived longer and took more time to reach its maximum size than previously thought, according to a new study ...

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

A study of fossil bones shows Tyrannosaurus rex kept growing until around age 40, challenging long-held ideas about dinosaur ...

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

Dim-witted dope or brainy brawn? The debate over T. Rex's smarts continues, with a recent paper leaning toward the original theory that these fearsome giants weren't all that bright. "The possibility ...

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

Almost everyone has heard of Tyrannosaurus rex, but how much do you actually know about this iconic dinosaur predator? Take ...

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