Other forms: werewolves
In European folklore, a werewolf is a man who turns into a dangerous animal at night. According to legend, the transformation of a werewolf is triggered by a full moon.
Stories of werewolves have existed for thousands of years, but belief in werewolves became widespread in Europe during the Middle Ages. Today, these creatures are popular monsters that appear in books, movies, television, video games, and more. The were in werewolf comes from the Old English word wer>, meaning "man."