Breast large size women was formed because of the lack of attention on the part of men to their own offspring. This is the conclusion of biologists from the University of Bristol. They put forward his theory of the formation of the female breast and tried to explain from a scientific point of view.
Large Breasts can produce more milk than small. In terms of the evolution of large Breasts is a way to raise healthy offspring. Originally bodies of the ancient men and women were not so many differences, but over time has been the differentiation of functions. Men took on the role of breadwinner, and women have taken over the function of raising offspring.
The process of changing the human body is inevitable, say scientists. Preferences of men in the choice of the women reflected on the overall state of the human species. Thus, the evolution does not stop, it continues to this day.