Rattata is a small, quadruped rodent Pokémon. Its most notable feature is its large teeth. Like most rodents, its teeth grow continuously throughout its life and must be worn down by gnawing. Rattata has purple fur on its back, and cream fur on its stomach. It has a pair of thin, cream-colored whiskers and a long tail that curls at the tip. Females have shorter whiskers and lighter fur color.