Since Darwin's day, we've been told that sexual monogamy comes naturally to our species. But this narrative is collapsing. Here, renegade thinkers Christopher Ryan and Cacilda Jethá, while debunking almost everything we "know" about sex, offer a bold alternative explanation. Ryan and Jethá's central contention is that human beings evolved in egalitarian groups that shared food, child care, and, often, sexual partners. Weaving together convergent,...

"This evidence-based guide educates and informs health professionals about promoting sexual wellbeing in the context of challenges from physical and mental health. This accessible text demystifies a topic that is sometimes difficult to discuss. It is essential reading for healthcare practitioners interested in providing comprehensive and person-centred care"--

What can explain the incredible diversity of beauty in nature? Richard O. Prum, an award-winning ornithologist, discusses Charles Darwin's second and long-neglected theory--aesthetic mate choice--and what it means for our understanding of evolution. In addition, Prum connects those same evolutionary dynamics to the origins and diversity of human sexuality, offering riveting new thinking about the evolution of human beauty and the role of mate choice,...

"Biology of Sex is an interesting, timely, and intellectually challenging introduction to the biology of sex. Mills analyses the biological basis of sex by introducing genetic, evolutionary, and ethological principles. Focussed primarily on the biological aspects of human sex, the text employs select comparisons with the many variations in sexual systems among non-human organisms. Intended primarily for general education courses, Biology of Sex supports...