Tyrannosaurus Rex was the apex predator of the Late Cretaceous world. You might picture these dinosaurs stomping around on ...

For decades, pop culture has painted Tyrannosaurus rex as a heavy-footed titan whose every step would make the ground tremble. But new evidence suggests this nine-ton predator was surprisingly dainty.

A remarkably complete tyrannosaur specimen, unearthed in the middle of Montana, may finally settle one of the most contentious debates in paleontology and upend our understanding of Tyrannosaurus rex, ...