Researchers say they have uncovered a case of mistaken identity and found evidence of a species called Nanotyrannus lancensis.

A fossil of two dinosaurs locked in battle shows the smaller of the pair wasn’t a young T. rex but a full-grown predator of ...

LONDON --Tyrannosaurus rex was a slowpoke. That is the conclusion drawn from the latest research by scientists at the University of Manchester in England, whose study flies in the face of decades of ...

For years, the "dueling dinosaurs" in a North Carolina museum were believed to be a Triceratops and Tyrannosaurus rex.

An argument over whether fossils from several small dinosaurs represent a juvenile Tyrannosaurus rex or smaller adults of a ...

It’s the ultimate thought experiment: a human dropped into the Cretaceous world of Tyrannosaurus rex. Could agility, terrain, or intelligence make up for the 15,000 pounds of muscle bearing down at 30 ...