When children lose their baby teeth, there is an adult set already growing beneath the gums, ready to emerge. But if we lose ...

After protruding from the tops of the snout, the teeth look like antlers, which is how babirusas got their name — the word babirusa means "pig deer" in the Malay language. Babirusas are also ...

Like something out of "Repo! The Genetic Opera," scientists have managed to grow human-like teeth in a lab — and implant them inside a miniature pig's mouth, in a harbinger of weird new ...

This signals aggression or agitation. If your guinea pig’s teeth chattering is accompanied by baring of teeth, it is your pet’s way of telling another guinea pig to stay back or back off.