True... although it did have its roots in Third Edition D&D. There was the Shaper prestige class that basically had a player partially wild shape certain parts of his body to take on those parts of an animal that would accomplish what you wanted, while maintaing your basic human body. So you could change your eyes to an eagle's without actually having to become an eagle... or change your legs into fins to make you better at swimming... grow horns on your head for charging etc. Which is kind of what wardens do now with their Forms.
