The Descent of Man: and selection in relation to sex

The Descent of Man, and Selection in Relation to Sex by Charles Darwin was first published in 1871. The Descent of Man, and Selection in Relation to Sex is Darwin's second book on evolutionary theory. In The Descent of Man, Darwin applies theory to human evolution, and details his theory of sexual selection. The book discusses many related issues, including evolutionary psychology, evolutionary ethics, differences between human races, differences between human sexes, and the relevance of the evolutionary theory to society.