Nidoran ♂ is a small, quadrupedal, mammalian Pokémon. It is pinkish purple with darker patches. It 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. Nidoran♂ is a male-only species. (Source: Bulbagarden.net, CC BY-NC-SA)