Bunny asks his father Papa Rabbit what an organism is. Papa Rabbit explains that an organism must be able to do four things: 1) be made of DNA, which determines appearance and preferences, 2) have babies, 3) grow and develop, and 4) react and adapt to their environment. Bunny realizes that as a living thing made of DNA that can have babies, grow, learn, and run from predators, he himself qualifies as an organism.