Shape-shifters are beings or entities that can change their physical form or appearance at will. They are often found in folklore, mythology, and fiction, where they may transform into animals, other humans, or even inanimate objects. This ability allows them to adapt to different situations or environments, often serving various roles in stories, such as tricksters or protectors. In many cultures, shape-shifters are associated with magic or supernatural powers. Examples include the werewolf in European folklore, who transforms during the full moon, and the kitsune in Japanese mythology, a fox that can take on human form. These characters often explore themes of identity and transformation.