(CN) — A fossil long at the center of one of paleontology’s fiercest debates has finally given up its secret, and it’s rewriting what scientists know about Tyrannosaurus rex. Researchers studying the ...

T. rex's story has been turned on its head by a new discovery about one of the world's most famous fossil finds.

There is no question that Tyrannosaurus rex got big. In fact, this fearsome dinosaur may have been Earth's most massive land ...

Everyone knows Tyrannosaurus rex—but did you know these fierce predators started life as fluffy, gangly hatchlings? Or that they evolved from a family of mostly small, fast dinosaurs? Gabrielle Phifer ...