Understanding your dog's behavior can be a daunting task. For example, why do dogs howl? Researchers admit that howling behavior in dogs is still largely a mystery. But if Fido goes wild at the sound of sirens or other dogs, it's not because his ears hurt. It's his ancestry that's partly to blame. Your pooch shares his penchant for howling with his distant relation, the wolf. Much like barking or growling, howling is a deeply ingrained behavior that helps wolves communicate with one another. You see, howling is a vital part of a dog's life, so why not help him learn it faster? Check out these two volunteers who decided to give their dog a lesson in howling!