Tyrannosaurus rex was one of the most ferocious predators to ever walk the Earth. With a massive body, sharp teeth, and jaws so powerful they could crush a car, this famous carnivore dominated the ...

Tyrannosaurus rex and most other dinosaurs were wiped out at the close of the Cretaceous period, an expanse of geologic time that lasted ... part of the Cretaceous, before the rise of tyrannosaurs." ...

Scientists have uncovered an apex predator that once ruled the prehistoric world, eclipsing early relatives of the Tyrannosaurus ... the same time as Giganotosaurus and before T. rex.