Paleontologists have long debated the origins of one of the most iconic dinosaurs, the Tyrannosaurus rex. While many fossils have been found in North America, some researchers questioned whether the ...

rex by about 6 to 7 million years, and rivals it in size at about 40 feet long. Some paleontologists believe the Tyrannosaurus migrated to North America from Asia across a land bridge. T.

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. Remember that scene in Jurassic Park where the Tyrannosaurus rex chases down a Jeep?

By Jeanne Timmons If you have ever stood in the presence of a complete fossil of a Tyrannosaurus rex, there is no doubt it was the apex predator of its era. The adults were enormous, with giant ...

rex still reigns as the king of dinosaurs, according to scientists who on Monday argued against a contentious hypothesis advanced this year that the mighty meat-eater Tyrannosaurus should be ...

What did Tyrannosaurus rex eat? The obvious answer is “Anything it wanted,” but paleontologists have uncovered some surprises in the actual mealtime habits of the Cretaceous carnivore.

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. This is the conclusion ...

This week, researchers breathed new life into another longstanding sticking point: are long-ago recovered fossils those of a juvenile Tyrannosaurus-Rex, or of another distinct species entirely?

A provocative study published earlier this year proposed that the world’s best-known and perhaps best-loved dinosaur, Tyrannosaurus rex, was actually three separate species. Not so fast ...

The Tyrannosaurus rex seemingly came out of nowhere tens of millions of years ago, with its monstrous teeth and powerful jaws dominating the end of the age of the dinosaurs. How it came to be is ...

The jaw fossil for Tyrannosaurus mcraeensis has key distinctions from T. rex. Paleontologists have discovered a new species of dinosaur that could be the closest-known relative of the famed ...