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 ...

There is a distinctive and easily recognized open-mouth expression that is the canine equivalent of a human smile, ...

A new analysis suggests saber teeth were highly specialized for puncturing prey, ultimately at the cost of durability.

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 teeth ...

Next are the canines at the corners of your mouth ... and how the variety in human teeth allows us omnivores to chew up the wide variety of food we eat. An experiment with an egg left in vinegar ...