New research confirms that Nanotyrannus was not a juvenile T. rex, but a predatory species native to the Late Cretaceous ...

WASHINGTON (Reuters) - Surmising even the physical appearance of a dinosaur - or any extinct animal - based on its fossils is a tricky proposition, with so many uncertainties involved. Assessing a ...

Scientists have confirmed that Nanotyrannus was a mature species, not a young T. rex. A microscopic look at its hyoid bone ...

Dinosaurs haven’t roamed the Earth for millions of years, but the nature of their reign has sparked no shortage of controversial debates among paleontologists that remain unresolved today. Late last ...

For decades, a small tyrannosaur skull has divided paleontologists over whether it belonged to a separate species or a ...

A worthy matchup of big teeth, little brains. Picture this: Two dinosaurs with massive teeth and hulking figures circle each other, threatening a smackdown. Each was the most successful predator of ...

UNDATED (WKRC) - The king of dinosaurs is earning its name 66 million years after extinction. A new study published in the Ecology and Evolution journal has uncovered the possibility that the ...

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 ...

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. rex ...