Rabbits belong to a scientific domain called Eukarya, which consists of organisms that have cells with membrane-bound nuclei. The domain also includes multicellular life forms like animals and plants. Within the Eukaryota realm, rabbits are classified as members of the Animalia kingdom. They are part of the class Mammalia, which comprises warm-blooded vertebrates whose bodies produce milk from specialized glands for their young. Rabbits share this class with other mammals such as cats, dogs, and humans.