London's Natural History Museum has unveiled a festive Tyrannosaurus rex display ahead of Christmas.

Two paleontologists think they have settled a long-standing debate as to whether certain fossils from the very end of the ...

Debate kicked off in 1988 when a single small tyrannosaur skull discovered four decades earlier was given its own species ...

Growth rings in fossilized bones suggest the diminutive dinosaur, Nanotyrannus, would never grow up to become a T. rex — plus ...

Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type ...

“The fossil, part of the legendary ‘Dueling Dinosaurs’ specimen unearthed in Montana, contains two dinosaurs locked in prehistoric combat: a Triceratops and a small-bodied tyrannosaur. That ...

A new look at the "Dueling Dinosaurs" fossil reveals that Tyrannosaurus rex was not the only tyrannosaur roaming the land.

The precise purpose of T. rex’s relatively tiny arms has long been mysterious. Over the years, scientists have suggested that they might have been used to grasp struggling prey, to help resting ...

NC State University and the NC Museum of Natural Sciences discover the nanotyrannus, a smaller dinosaur once thought to be a teenage T-Rex ...