Caterpie

Our first precious, darling bug type, and depending on the game version, the first pokemon many players ever caught from the wild. There isn't a whole lot I can say about Caterpie as a design, however, because it's just lifted almost unchanged from a real animal: Caterpie is modeled after the larval stage of Papilio troilus, the spicebush swallowtail. This distinctive caterpillar's bulbous shape and vivid false eyes give it the appearance of a snake's head, which is enough to deter more gullible predatory birds.

When that fails, these caterpillars can also extrude a forked, orange "horn," just like Caterpie's, which not only looks a lot like a snake's tongue but stinks horribly. Pretty much the only difference between the real animal and Caterpie is that Caterpie's eye spots are its actual, real eyes, or at least emote like they're it's real eyes.

Honestly, how was anybody able to forgive Misty for hurting tiny little Caterpie's feelings like that? What an asshat. No wonder she didn't get her damn bicycle back.