Nidoran ♂ appeared in 1996 video game called Pokémon Red & Green. Nidoran ♂ is a Poison Pin Pokémon. Nidoran ♂ has excellent hearing and, thanks to specialized muscles, it can move and rotate its ears to pick up the slightest of sound.
Nidoran♂ is a small, quadruped rodent-like 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 an exclusively male Pokémon, Nidoran♀ being its female counterpart.
Nidoran♂ constantly listens for the sounds of approaching enemies with its large ears. Said ears have unique muscles that allow them to be moved in any direction, and even the slightest sound does not escape Nidoran♂'s notice. In order to listen to distant locations, it flaps its ears like wings. When angry, it extends its toxic spikes and charges, stabbing with its horn to inject poison. Nidoran♂ lives in open spaces, such as savannas and plains.