Does Millie, my dog laugh? What would I look for in a dog laugh? This comes from petsafe.net:
"Konrad Lorenz, a Pulitzer prize winning Austrian zoologist and ethologist, also believed dogs had the capacity to laugh, and wrote about it in his book, Man Meets Dog (Routledge Classics, 2002). He agreed with Fox that the “dog laugh” most often happened during play with a beloved human, with the canine somewhat mimicking the human smile with open mouth and stretched lips. But he also pointed to a very specific “doggy laugh” sound that was described as a huffing breathy “laugh pant” behavior. Researcher Patricia Simonet followed Lorenz’s speculation with experiments recording dog sounds during the early 2000s. She recorded dogs while they played at the park, and later analyzed the sounds they produced. Simonet said the dog laughter sounds like panting, sort of a “hhuh, hhuh” sound. But once she analyzed the recordings, the sounds were quite different than normal panting. Dog laughter panting included a broader range of frequencies than every day dog panting produces. To further test her theory, Simonet played the doggy laughter sounds to a group of 15 puppies. The sound made them frolic and romp with joy, making her speculate they recognized the laugh-pant as a play signal." It would be nice to find us a video of a laughing dog. Maybe this one HERE. What do you think? | 
