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

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

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

Using polarised light, the team identified previously unknown growth marks that had gone undetected in earlier studies. These ...

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

There is no question that the Tyrannosaurus rex was big. In fact, it may have been Earth’s biggest land predator of all time.

By cutting into a tiny throat bone, Princeton's Chris Griffin showed that it belonged to an adult of a smaller tyrannosauroid ...

For decades, scientists have been counting annual growth rings, similar to tree rings, found inside fossilized leg bones of Tyrannosaurus rex to estimate how old the giant carnivores were when ...

A Tyrannosaurus rex found in central Canada in the 1990s is the heaviest and oldest of its kind, paleontologists recently announced. The dinosaur, nicknamed Scotty, probably weighed about 9.8 tons and ...

Jan. 11—Question: What's toothy, about 73 million years old, and hails from south-central New Mexico? The answer: A new species of dinosaur, discovered by a team of paleontologists associated with the ...

Senior Paleontologist Clint Boyd joins All-Day to talk about his recent accidental discovery of a t-rex skeleton in North Dakota.