These sharp and sturdy tools are essential for ... s oral hygiene through regular brushing and dental checkups, dog teeth are naturally somewhat self-cleaning. The shape and position of their ...

Narrator: Lions have them, hippos have them, and even you and I have them: canines, those long, pointy ... those teeth are still pretty amazing because anthropologists use canine size and shape ...

Why do humans have canine teeth? Patrick McGannon ... physical anthropology at the Museum of Natural History. Early hominids may have found those four sharp teeth at the corners of the jaws ...