Shaun Ellis gave up comfort, a family and the civilization that surrounded him to live with wolves, founding a wolf sanctuary at the Coombe Martin Wildlife Park, on England's southwest coast. He and his girlfriend Helen Jeffs, who works with him at the park, are hoping the pack's lone female, Cheyenne, will accept Jeffs before she gives birth to a litter of pups. A wolf's gestation period is about nine weeks. Jeffs has changed her diet to reflect Cheyenne's and has been learning to regurgitate food for the wolf pups. (Courtesy of Animal Planet)