Frogs with claws.

So locals have known about these frogs for years. But now that the white man has discovered them, it's news. These frogs have a nifty little defensive mechanism. When they are threatened, the bones in their fingers, which are sharp and pointy, literally rip through their skin so they can tear you up. Interesting little evolution device. I wonder if it hurts when they do it? It's kinda like wolverine eh. Hope it doesn't sting too much. Click here for full article. Click here for another article.