Primal instinct

Primal instinct' is the ability of a being or animal to call upon the primitive and/or animalistic instinctive urges within them. Almost all animals possess this to some degree or another, though it is most commonly seen in canines, felines and the great apes. In humans, this derives from a genetic holdover from the days of yore when we were still monkeys swinging through trees. The benefit of such a gift is that it allows one to harness physical enhancements in keeping with their immediate situation or environment. Some may experience a surge of adrenalin, while others may find their senses finely tuned. Supernatural creatures such as werewolves automatically inherit this as an element of their relationship to the wolf.

Most humans cannot harness this ability, but there are those who have undergone some mutation in their physical development, or through scientific experimentation that allows them to get in touch with their inner animal.