A study published this week proposes three species of Tyrannosaurus instead of the long-accepted single species rex. The researchers analyzed dozens of T. rex specimens, of which there are only about ...

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 ...

If Tyrannosaurus rex is too mainstream, discerning 10-year-olds may now have a new name to spout when asked their favorite dinosaur – Tyrannosaurus mcraeensis. The newly identified species appears to ...

For over 50 years a tiny Tyrannosaurus rex has been the subject of a scientific debate. Was it a previously unknown pygmy species—a miniature version of the iconic predator—or was it just a young T.

Even the most fearsome dinosaur of all was once a baby. And downright ’adorable’ at that. Scientists have new revelations about the Tyrannosaurus rex, which was so small at birth that even humans ...

"Scotty" probably weighed more than 19,400 pounds when alive. LONDON -- Paleontologists have unearthed the remains of the largest Tyrannosaurus rex ever found, according to a new study. The gigantic ...

The co-owner of a dinosaur-themed park in southern Colorado thinks an electrical malfunction caused a life-size animatronic Tyrannosaurus Rex to burst into flames. Zach Reynolds says the T-Rex at the ...