Imagine having the job of creating over 700 unique little monsters with just your imagination to rely on. It’s pretty unlikely that anybody would be able to do this without eventually running out of ideas. Luckily for Nintendo, our world is filled entirely with unusual things just waiting to be cartooned and turned into Pokémon.
Most of them are a bit obvious, such as Ekans being a snake, Mankey being a monkey, and Pineco being a...well...pine cone. But some are a bit less obvious, and a bit more...interesting.