Five legged friend

Yesterday Max brought home two new pets. Johnson I and Johnson II. Johnson I appears to be some sort of tree frog. Johnson II is a five legged frog! I am not much of a fan of amphibian and reptile friends, but Max thinks this is the coolest thing ever! And, he may be right. I mean have you ever seen a five legged frog? I don't know that the picture does it justice, but in between it's two hind legs is a fifth leg... the one he is holding it by! Gross!