Nidoran-male is a small, quadruped rodent-like Pokémon. It is pinkish purple with darker spots, and has large, spiny ears with teal insides, oversized front teeth, and red eyes. Its back is covered with three lines of large spines that can release potent poisons if threatened. The center line of spines is taller than the other two. The size of the long, pointed horn on its forehead is indicative of the strength of its venom. It lives in open spaces, such as savannas and plains.