Add Yahoo as a preferred source to see more of our stories on Google. “Happy dogs look happy,” says Marc Bekoff, PhD, an expert animal behaviorist and professor emeritus of ecology and evolutionary ...

Spoiler alert: Tail-wagging isn't on the list.

Add Yahoo as a preferred source to see more of our stories on Google. However, sometimes knowing what happiness looks like for your dog can be tricky, especially since dogs can’t communicate in words ...

Of course, we want our pups to be happy from head to tail, but what does happiness look like in dogs? Dog behavior is complex ...