Dogs smile by pulling one or both lips back and may show all or some teeth. The "smiling" is often accompanied by other greeting behaviors, like approaching, wagging or even whining.. Smiling is a ...

Dogs smile by pulling one or both lips back and may show all or some teeth. This smiling is accompanied by other greeting behavior, like approaching, wagging or even whining.

Dogs smile by pulling one or both lips back and may show all or some teeth. This smiling is accompanied by other greeting behavior, like approaching, wagging or even whining.

Is your dog really "smiling" in the way humans understand? 5 Things Sunday host James Brown explores the topic with veterinary behavior specialist Dr. Lore Haug.

Dogs smile by pulling one or both lips back and may show all or some teeth. This smiling is accompanied by other greeting behavior, like approaching, wagging or even whining.