The framework predicts that animals with mammary glands are live bearing. The framework has been proven wrong by living species - the platypus and the echidna. The framework is that evolution is chasing its tail and making excuses for not being able to prove its assertions.
Proof positive you have absolutely no idea of what the real theory of evolution states. The framework predicts that mammals, and only mammals -- the warm-blooded critters with three ear bones, differentiated dentiture, a couple of special holes in their heads, who descended from mammal-like reptiles -- will have mammary glands.
Sorry, Vade, but the boy just flat-out showed he did not know of that which he was talking. Of course, I'm not quite sure even hitting him over the head like this is going to be enough of a hint.