Caterpie is a Pokemon that is rather petite, yet it's really a catepillar that's large compared to the one's in the real world. Caterpie, like Rattatas and Pidgeys, has been replaced by other Pokemon over the years, yet it still exists. Caterpie is comparable to Weedle, Wurmple, and Burmy, yet these are more like worms or something. Caterpie are known to crawl around in forests and scare girls before getting eaten by savage Rattatas or something else. It is weak, but it can still defeat Oddish and Magikarp anyway. It also evolves into Metapod.