Named Ulughbegasaurus, this creature reigned as the apex predator long before the legendary Tyrannosaurus rex. The dinosaur ... a key player in shaping the food chain. Its size and strength ...

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 ...

The disappearance of large herbivores or shifts in vegetation could have disrupted the predator's food supply ... than T. Rex Several predator dinosaurs were larger than Tyrannosaurus rex.

Artwork: T. rex was a formidable predator during the Cretaceous Period As a big, active predator, the mighty Tyrannosaurus rex needed a way to cool down. Now, scientists say that two large holes ...