Apex predators, like the Tyrannosaurus rex, eventually arose from smaller-bodied tyrannosauroid dinosaurs called Khankhuuluu mongoliensis, the study's researchers said.

Paleontologists have discovered a new species of dinosaur that could be the closest-known relative of the famed Tyrannosaurus rex.

The classic image of Tyrannosaurus rex flashing giant teeth might be wrong. New research suggests they were likely covered by scaly lips.

A rendering of Tyrannosaurus mcraeensis, a newly identified relative of T. rex. A partial skull on view at the New Mexico Museum of Natural History and Science was key to the discovery.

Don't tell the producers of Jurassic World, but dinosaurs like Tyrannosaurus rex may have grown even larger than we previously thought based on the fossils they left behind.

Now, a team of paleontologists says that the school-bus-sized Scotty may have actually been small for a T. rex — and that these prehistoric reptiles may have grown up to 70 percent larger.

A few days back, companies unveiled plans to create luxury fashion accessories using lab-grown “Tyrannosaurus rex leather.” However, researchers have now cautioned that the final product won ...

How would Tyrannosaurus rex look with lips? Our view of T. Rex as a fearsome-looking dinosaur with razor-sharp fanged teeth may need to change.

The Jurassic World Dinosaur Fossils: Tyrannosaurus rex (T.rex) #76968 set will be the largest in the Jurassic World collection at 3,145 pieces.

There's no denying that Tyrannosaurus rex was one of the biggest and baddest dinosaurs to ever walk the planet. But exactly how big could this ferocious dinosaur get? In a new investigation ...

Experts say the chances of growing T. rex leather anytime soon look less than likely. When scientists do eventually lab-grow fossilized dinosaur collagen, it will be expensive.

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 ...