We know dinosaurs were big, but how big were they? And how do we even know? Luckily, paleontologists and other scientists know how to find the answers. By measuring fossils, comparing them to the ...

When you think of the largest carnivorous dinosaurs, you might picture a massive predator biting through bone in one devastating snap. That image fits Tyrannosaurus rex, but new research shows it ...

If humans had lived 200 million years ago, they would have marveled at the largest dinosaur of its time. It's name means "a giant thunderclap at dawn." The recently discovered fossil of a new dinosaur ...