A howl is a long, mournful sound made by animals, especially wolves. It serves various purposes, such as communication between pack members or marking territory. When a wolf howls, it can be heard over long distances, helping to keep the group connected even when they are far apart. Humans often find howls fascinating and sometimes eerie. In popular culture, howls are commonly associated with the full moon and the mysterious nature of werewolves. This connection has made howling a popular theme in movies and stories, adding to the allure and intrigue surrounding these powerful sounds.