With "The Avengers" hitting theaters this weekend, superheroes are on everyone's mind. But not all superheroes are as cool as Iron Man, Thor, The Hulk, and Captain America. In fact, some superheroes are just plain bizarre. Sure, most comic book heroes have the abilities of flight and super strength, but how many can vomit acid? Or communicate with squirrels? Or make their own arms fall off?

Well, the 19 heroes below can do all that and more. Some of these characters you just have to see to believe. We don't expect an "Avengers"-type movie with this cast of characters, but we can at least appreciate them for the utterly absurd realities they have created within the comic book universe. Which character do you think the most bizarre? Vote and let us know!