Finn was thought to be the only human alive, till we meet his dad, Martin. Do you guys think Martin was born after the Great Mushroom war? If so, doesn't that mean there's more humans (cuz of his parents and wife)?
Ok about humans though... isn't Susan strong a human? She is revealed not to be a fish person, and also have you guys noticed above finn and Jakes couch thier is a woman with n
Long blonde hair and no clothing on very visible in every episode? I bring this up cause she is obviously human as well. And in one of f inn's past lives their is Shoko (still finn I know but she is still human