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.

An old dinosaur debate gained new traction after a new study's findings suggesting that miniature versions of the famed Tyrannosaurus rex may actually be a distinct species. Researchers from the ...

rex by about 6 to 7 million years, and rivals it in size at about 40 feet long. Some paleontologists believe the Tyrannosaurus migrated to North America from Asia across a land bridge. T.

A provocative study published earlier this year proposed that the world’s best-known and perhaps best-loved dinosaur, Tyrannosaurus rex, was actually three separate species. Not so fast ...

rex still reigns as the king of dinosaurs, according to scientists who on Monday argued against a contentious hypothesis advanced this year that the mighty meat-eater Tyrannosaurus should be ...

The Tyrannosaurus rex seemingly came out of nowhere tens of millions of years ago, with its monstrous teeth and powerful jaws dominating the end of the age of the dinosaurs. How it came to be is ...

The jaw fossil for Tyrannosaurus mcraeensis has key distinctions from T. rex. Paleontologists have discovered a new species of dinosaur that could be the closest-known relative of the famed ...

A group of scientists say the meat-eater dinosaur T.rex is the only species of Tyrannosaurus. It follows a previous study which claimed otherwise. Seven palaeontologists say a paper from March ...