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

The largest study ever conducted on the growth of Tyrannosaurus rex reveals that the dinosaur took a far longer and slower route to adulthood than scientists had previously believed.

Tyrannosaurus rex is one of the few dinosaurs that has its full scientific name in wide use, largely because that name is so cool. But now we might have a few others to learn, as analysis of known ...

The dinosaur king may yet retain its crown. Earlier this year a study proposed that the iconic Tyrannosaurus rex should be split into three distinct species, but a new analysis says there isn’t enough ...

There is no question that Tyrannosaurus rex got big. In fact, this fearsome dinosaur may have been Earth’s most massive land predator of all time. But the question of how quickly T. rex achieved its ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (WGHP) — Tyrannosaurus rex. The name ...

Tyrannosaurus rex lived longer and took more time to reach its maximum size than previously thought, according to a new study. Scientists have long counted annual growth rings in fossilized ...

T. rex teeth — possibly up to six inches long — were thought by many to be too big not to protrude. In recent years, paleontologists have debunked other stereotypical portrayals of the dinosaur. Some ...

WASHINGTON (Reuters) - A group of researchers is proposing that Tyrannosaurus, the most famous of all dinosaurs and the ultimate apex predator, actually includes three species and not just the single ...

A new analysis of Tyrannosaurus skeletal remains reveals physical differences in the femur, other bones and dental structures across specimens that could suggest Tyrannosaurus rex specimens need to be ...

A Tyrannosaurus skull unearthed in South Dakota, nicknamed “Maximus,” sold for $6.1 million at Sotheby’s Friday, a significant shortfall from its $15 million to $20 million estimate. The ...