When woman began walking upright, her breasts became evident. Woman is the only mammal whose breasts are always visible. They have become a form of sexual identity.

The Amazons, whose name means without breast, had their right breast amputated as small children so that they could better hold their bows and lances.

God gave St. Gwen three breasts because, having had triplets, she needed an extra breast to feed them all at once.

Sexual stimulation hardens the nipple.