From Aristotle to Adam

The subject of why men have nipples has arisen lately. Of course, this is nothing new. The issue has caused much speculation from Aristotle to Darwin, no doubt way back to Adam. I’m sure that believers in evolution would say that male nipples are probably vestigial in nature. Men perhaps suckled offspring. In The Descent of Man, Darwin suggests the possibility that "long after the progenitors of the whole mammalian class had ceased to be androgynous, both sexes yielded milk, and thus nourished t