The Lykoi (commonly called wolf cat sometimes werewolf cat) is a natural mutation from a domestic shorthaired cat. The mutation has occurred in domestic cats over the last 20 years. DNA testing has been done by UC Davis to confirm that the cats do not carry the Sphynx/Devon Rex gene. The breed was developed by Patti Thomas in Vonore, Tennessee. Lykos means 'wolf' in Greek. Lykoi vary from completely covered in hair to partially hairless. Sometimes they may lose all of their hair resulting in them looking like a Sphynx but it grows back. Lykoi are genetically distinct from the Canadian Sphynx. The hair coat is unique in appearance in that it resembles the coat of an opossum when mostly coated. (Source: Wikipedia.org, CC BY-SA)