Researchers described in the Proceedings of the National Academy of Sciences, a US journal, the first discovery of a broken T-rex tooth in another dinosaur bone – in this case, in the vertebrae ...

With a massive body, sharp teeth, and jaws so powerful they could crush a car, this famous carnivore dominated the forested river valleys in western North America during the late Cretaceous period ...

“We found this T. rex tooth, and that kind of helped us figure out that this was actually a T. rex," she said. Not just any Tyrannosaurus rex, though. "Having this be a juvenile T. rex, that’s ...