Caterpie is a small, green, caterpillar-like Pokémon known for its gentle nature. It is classified as a Bug-type Pokémon and is often found in grassy areas. Caterpie has large, expressive eyes and a distinctive yellow horn on its head, which helps it blend into its surroundings to avoid predators. As it grows, Caterpie evolves into Metapod, and eventually into Butterfree. This evolution process allows it to gain new abilities and become more powerful. Caterpie is known for its ability to produce silk, which it uses to create a protective cocoon during its metamorphosis.