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.

Add Yahoo as a preferred source to see more of our stories on Google. Chattering teeth – that rapid, sometimes noisy clack of your upper and lower teeth – is a minor, startling symptom that can feel ...

Question: My cat loves to sit in front of a window and watch everything that goes on outdoors. Sometimes when she does, her teeth chatter. This has been going on ever since she was a kitten.

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