Paleontologists have discovered the fossilized remains of a crocodile "hypercarnivore" that lived in what is now Argentina some 70 million years ago—and it ate dinosaurs. Named Kostensuchus atrox, the ...

They’re agile on land. Intelligent in behavior. And…they can gallop like a horse? Learn what makes Cuban crocodiles so ...

Kostensuchus atrox, a dinosaur-eating predator related to crocodiles, revealed in study after fossils discovered in Argentina.

Seventy million years ago, southern Patagonia was a warm, seasonally wet landscape where dinosaurs, turtles, frogs, and mammals thrived. Hidden within its floodplains, a powerful predator stalked its ...