Spinosaurus was one of the biggest predators of its time, but was it big enough to take down the Tyrannosaurus rex? Adding to the size of Spinosaurus was its nearly 5-foot sail that ran along the ...

The visual of a T. rex stomping around on a movie screen, eating people and roaring is a lot like pizza. When it's good, it's really good. And even when it's bad, it's still pretty good. Nevertheless, ...

WASHINGTON (Reuters) -Tyrannosaurus subdued prey with raw power, using bone-crushing bite force. But other meat-eating dinosaurs that rivaled T. rex in size used different approaches. Giganotosaurus ...

Spinosaurus was unlike any other carnivorous dinosaur ever discovered. Larger than Tyrannosaurus rex, it hunted in rivers and wetlands across ancient North Africa. Its long snout, conical teeth, and ...

A remote stretch of the central Sahara, deep in the deserts of Niger, does not look like a place that once held rivers, forests, and enormous predators. Yet an international team spent years chipping ...

Already home to the world's best-preserved Tyrannosaurus rex, a new dinosaur exhibit has arrived at Field Museum just in time for the start of summer. The "Spinosaurus," a fish-eating dinosaur that ...