Why do humans have canine teeth? Patrick McGannon, Surprise, Arizona All primate species have them, says Sabrina Sholts, a curator of physical anthropology at the Museum of Natural History.

Following is a transcript of the video. 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 ...

Scientists found a “large”-eyed sea creature with “canine-like” teeth on reefs in the South Pacific Ocean and discovered a new species. Photo from Getty Images / iStockphoto Near an island ...