Chattering teeth – that rapid, sometimes noisy clack of your upper and lower teeth – is a minor, startling symptom that can ...

Have you ever been playing with your dog only to notice that their teeth are visibly — and audibly — chattering? Teeth chattering in dogs is a pretty common behavior, although it can be unsettling.

Guinea pigs, with their small size and cute appearance, are popular pets. They are larger than gerbils or hamsters, but still small enough to fit into apartments or small houses. Guinea pigs don't ...