Almost every culture around the world has some type of shapeshifting myth, and almost every commonly found animal (and some not-so-common ones) probably has a shapeshifting myth attached to them. Usually, the animal involved in the transformation is indigenous to or prevalent in the area from which the story derives. It is worthy to note that while the popular idea of a shapeshifter is of a human being who turns into something else, there are numerous myths about animals that can transform themselves as well.

Examples of shapeshifting in classical literature include many examples in Ovid's Metamorphoses, Circe's transforming of Odysseus' men to pigs in Homer's The Odyssey, and Apuleius's becoming a donkey in The Golden Ass.