Werewolves have evolved a rare trait to change their physiology to mimic Humanity, the most extreme example of phenotypic plasticity in the natural world. A Werewolf’s cells contain the enzyme Lycanthrope, which can trigger a rapid transformation in the physiology of the creature, including changes in organ mass, hair growth, muscle density and bone structure. This transformation is not a painless one, and sometimes result in death if the Werewolf is not strong enough. This transformation is done consciously, so baby Werewolves must learn how to transform to and from their Beast form. It is believe that this trait devolved over millions of years in order for the predator to hide from its main competition, Mankind, rather than to improve its ability to hunt. Werewolves also tend to be slightly longer living than Humans and have been recorded to live up to 100+ years. Most Werewolf families tend to operate on a pack mentally, forming close knit family groups that stay in contact for life, with the alpha male and female being replaced by pre-chosen successors when they pass away.