WEREWOLF
Werewolf also known as lycanthropes or wolfmen, are mythological humans with the ability to shapeshift into wolves or wolf-like creatures, either purposely, being bitten by another werewolf or after being placed under a curse. The medieval chronicler Gervase of Tilbury associated the transformation with the appearance of the full moon however, there is evidence that the association existed among the ancient Greeks, appearing in the writings of Petronius. This concept was rarely associated with the werewolf until the idea was picked up by Gervase. Shape-shifters similar to werewolves are common in tales from all over the world, though most of them involve animal forms other than wolves.