Palaeontologists have argued for decades over whether certain fossils are young Tyrannosaurus rex or another species entirely ...

When you look at a fossil on display, you may envision the world 66 million years ago. You might feel the earth shake beneath ...

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

A groundbreaking fossil discovery in North Carolina has put to rest a long-standing debate among paleontologists. The find ...

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 ...

Tyrannosaurus rex earned its “Tyrant King” status partly due to its enormous size. An adult T. rex could easily grow over ...

What we knew as a “teenage dinosaur” of the T. Rex family was actually a completely different and adult species. Apparently, ...

Fossils paleontologists initially thought belonged to a juvenile Tyrannosaurus rex actually belong to a new species of ...

A fossilized partial dinosaur skull originally thought to be from a Tyrannosaurus rex might actually represent a previously unknown species, according to a paper published Thursday in the journal ...

Then you look closer and notice the detail: how the ribs are built at different lengths to create a rib "cage," how the dark-colored bricks create the illusion of shadow and throw the light-colored ...