Currently, there are many breeds of dogs. They may well be small, medium, large, with short hair, long hair, large ears, drooping, among other characteristics. However, you must not forget that your canine friends have only one ancestor: the wolf. That is why, although two dog breeds can be completely opposite in shape and character, both respond to the same animal instinct and genetic inheritance from the wolf. This aspect is the one that can respond today to many of the behaviors of pets and how they relate to the environment. One of these behaviors that most closely resembles the wild wolf is precisely the howling of a dog.