Dogs are capable of laughing, and they typically do so when they are playing. Canine laughter begins with the doggy equivalent of smiling but also includes a sound that is much like panting. Animal behaviorist Patricia Simonet recorded those sounds while dogs played. On analyzing the recordings, she found that they involved a broader range of frequencies than regular dog panting. So, what makes a dog laugh? What can we do to make them laugh? Are they already laughing about us behind our back? We'll try to figure out what tickles their funny bone.
