It was discovered on a space mission that a frog can throw up. The frog throws up its stomach first, so the stomach is dangling out of its mouth. The frog then uses its forearms to dig out all of the stomach's contents and then swallows the stomach back down again
More frog facts: Because frogs come out in the rain people used to think that they fell to earth in the rain and in the nineteenth century England's people tried catching them to prove it. Also, it's a myth that you can get warts from touching frogs.