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 ...

Hippos are horrible at chewing, and their giant tusks and front teeth are to blame. These intimidating dental features are used by hippos, in part, to protect themselves and their territory. But some ...

We share our sharp canine teeth with lions, hippos, and other mammals. But believe it or not, they have nothing to do with tearing into meat. Instead, our ancestors originally used them to fight for ...