Someone please explain how the woodpecker evolved so many specific traits all at once. The two most glaring being that the tongue wraps completely behind its head, and that the beak is fused to the skull. Both of which are useless without the other. Evolutionary theory dictates that there are small genetic mutations that produce higher survival rates in altered organisms. How can the toug growing backwards into your skull be any advantage? Unless of course it split, wrapped all the way around the skull, rejoined, and elongated in one mutation. Extremely unlikely. Or rather absurdly unlikely.