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

Dinosaur bones are like trees—every year is represented by a new ring, and paleontologists can count those concentric circles to determine a fossil’s age. Previous estimates put T. rex’s lifespan at ...

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

A group of researchers has estimated how long it took Tyrannosaurus rex to reach its full size — and the time period is ...

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

An analysis of growth rings in the leg bones of 17 Tyrannosaurus rex individuals reveals that the dinosaurs matured much more slowly than previously thought, and adds to the evidence that they weren't ...

A new species of dinosaur related to Tyrannosaurus rex has been discovered in the U.K. Paleontologists at the University of Southampton identified the new species after studying four bones that were ...

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

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

Tyrannosaurus rex is thought to have had one of the most powerful bites of any animal that ever lived. So strong, in fact, that not only could it crush the bones of its prey, but it should have ...

"Stan" - A Tyrannosaurus rex dinosaur fossil skeleton is displayed in a gallery at Christie’s auction house in New York City. The fossil is named after the amateur paleontologist Stan Sacrison, who in ...