Team Rocket's Nidoran♂

Nidoran♂ is a Poison-type Pokémon introduced in the very first generation, Generation I, alongside its female counterpart, Nidoran♀. This male variant is distinguished by its larger horn and more aggressive demeanor compared to the female. Nidoran♂ evolves into Nidorino, and then into Nidoking with a Moon Stone, making it one of the original Pokémon with a branched evolution path depending on gender and item use. In the games, Nidoran♂ is often found in grassy areas, showcasing its natural habitat as a ground-dwelling creature. Its diet likely consists of various plants and insects, typical for small, territorial Pokémon. In the anime, Nidoran♂ has appeared in various episodes, often depicted as a feisty and protective Pokémon, particularly when it comes to Nidoran♀. Its Poison typing gives it an advantage against Grass and Fairy types, while being vulnerable to Ground and Psychic attacks. Nidoran♂ and its evolutionary line are culturally significant as some of the earliest examples of gender differences in Pokémon, a concept that would later be expanded upon in subsequent generations.