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.

If you wake up with tooth, jaw, ear or head pain you may have sleep bruxism, which that means you grind or clench your teeth when you sleep. If you have a mild case, you can try to treat it at home.

Greyhounds are considered among the most majestic dog breeds, but the Internet has recently been left amazed by one of their peculiar habits. After Instagram user @bernard_blue_boy posted a clip of a ...