Narrator: Lions have them, hippos have them, and even you and I have them: canines, those long, pointy front teeth. They're actually the longest teeth in the human mouth. So what are these long, sharp ...

Piranhas belong to a family of bony fish characterized by highly developed dentition. They’re cousins to the pacu fish, which has dentition eerily similar to human teeth. Unlike pacu teeth, which are ...

In the history of teeth, perhaps no tooth is as famous as the saber tooth. These long, blade-like canines seem almost perfectly optimized to kill prey. They've evolved at least five times in mammals, ...

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.

Iguanas are considered an invasive species in Florida and are being hunted by people like Marco Island resident John Johnson. Iguana bites, though rare, can be painful due to their serrated teeth and ...

Saber teeth — the large fangs of saber-tooth cat fame — are fearsome. They evolved at least five times in predators that are now extinct, but there's been something of a mystery as to why. Saber teeth ...