A fractured rib from the largest Tyrannosaurus rex ever described has yielded something paleontologists once thought ...

When Jolene Hursh pointed a synchrotron beam through a broken rib from the largest Tyrannosaurus rex ever measured, she ...

Dinosaurs haven’t roamed the Earth for millions of years, but the nature of their reign has sparked no shortage of controversial debates among paleontologists that remain unresolved today. Late last ...

Now, scientists are asking a new question: could they have been smarter than we think? Researchers are studying modern birds ...

Tyrannosaurus rex, the behemoth king of the late ages of the dinosaurs, grew its brain before its noteworthy body. That’s according to scientists at the Smithsonian’s National Museum of Natural ...

Add Yahoo as a preferred source to see more of our stories on Google. Digital painting of T Rex roaring down at prey Dim-witted dope or brainy brawn? The debate over T. Rex's smarts continues, with a ...

Together, they map out a broader evolutionary narrative, revealing that Asia was once a crucial stage for the rise of the ...

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 among ...

The Tyrannosaurus rex is often shown baring massive, sharp teeth, like the ferocious creature in "Jurassic Park." But new research suggests that this classic image might be wrong. The teeth on T. rex ...

An icon in the shape of a lightning bolt. Impact Link Reconstructing the behavior of a predator that hasn't walked on the Earth in over 66 million years isn't easy. But the T. rex is such a compelling ...