A review by chrissych
Why Is Sex Fun?: The Evolution of Human Sexuality by Jared Diamond

4.0

A fascinating overview of the evolution of sexuality and courtship, with a focus on humans but a lot of amazing information about other animals' mating rituals as well. The one tidbit that really stands out in my mind is the fact that men can (and have) lactate and breastfeed infants, but that social pressures suppressed it; the ability is still there, it just doesn't usually emerge because of the way our current mating habits have altered our hormones.