How big was the Tyrannosaurus rex? Learn how, even though they may not have been the largest theropod, they’re definitely one ...

Researchers say they have identified a new species of Tyrannosaurus that traces the dino's lineage to North America much earlier than previously thought, and could shed new light on the murky origins ...

A new study of long-debated dinosaur fossils has found growth patterns inconsistent with those of T. rex, suggesting the bones belong to a distinct species, but other experts aren't convinced. When ...

New research is trying to remake the case that fossils known as Nanotyrannus were their own species, rather than a teenage Tyrannosaurus rex. By Asher Elbein Asher Elbein previously wrote about ...

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 ...

Two young brothers and their cousin were wandering through a fossil-rich stretch of the North Dakota badlands when they made a discovery that left them “completely speechless”: a T. rex bone poking ...

DENVER (KDVR) — Details about the juvenile Tyrannosaurus rex fossil discovered by three boys in North Dakota are beginning to take shape at the Denver Museum of Nature and Science, including its size, ...