In "everything else chicken" there is a post called - Pics of egg to chick devolpment. It is very interesting. It is a bit confusing to me. I thought the yolk of the egg was what nourished the chick during developement. This appears to be the way it is in the pictures. What is the white? Is the "egg" that starts the chick stuck on to the yolk, and when fertilized is that what makes the bullseye? Where does the white go? Reproduction in humans I understand, but this isn't making sense to me.