There is something about a shapeshifter - a person who can transform into an animal - that grips our imagination, that tempts us to howl at the moon or flit through the night like a bat. Werewolves, vampires, demons and other strange beings appeal to our animal nature, our 'dark side', our desire to break free from society and proper behaviour. Across early cultures, rituals seemingly allowed shamans, sorcerers and witches to transform at will. Today millions believe shapeshi...
