When most people think of ferocious, blade-like teeth on prehistoric creatures they picture Smilodon, better known as the saber-toothed tiger. But in the world of dinosaurs, theropods are well known ...
Gorgonopsians were the apex predators of their day 250 million years ago. These forerunners to mammals evolved from cat-sized animals to bear-sized hunters during the middle and late Permian Period.
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