In this heartwarming video, a cute white dog can hardly contain its excitement as it prepares to head home, wagging its tail ...

Have you ever wondered why dogs wag their tails? Experts believe one reason could be because human owners like the rhythm of the tail wag so much, that they've bred breeds of dogs that do it more ...

Sometimes, it’s easy to tell how dogs feel. If your dog wags its tail when you arrive home or while you’re playing with it, the American Kennel Club says that’s likely a sign you make it happy.

(And, no, tail-wagging does not necessarily mean that your dog is full of glee.) It’s hard to be joyful if your basic needs aren’t met, and the same goes for dogs. “When I think of ‘happy ...