. "978-1-85702-356-5" . . "384"^^ . . . "Sperm Wars is a primarily nonfiction book by evolutionary biologist Robin Baker. Originally published in English in 1996, it has since appeared in 25 languages and in 2006 a 10th anniversary edition was published in the United States. Through a series of short fictional stories and discussion following them, Baker proposes evolutionary functions for sexual habits, mostly on the principle of competition between sperm of different men for a prized egg."@en . "Sperm Wars"@en . .