Researchers say " sometimes a bark is just a bark - but a long, loud panting sound has real meaning. They say the long, loud pant is the sound of a dog laughing, and it has a direct impact on the behavior of other dogs. " "What we found is that it had a calming or soothing effect on the dogs," said Patricia Simonet, an animal behaviorist in Spokane.
Will sampling go to the dogs? Time to sample laughing dogs!