In a book that moves between philosophy and history, and with lasting significance for both, Arnold Davidson elaborates a powerful new method for considering the history of concepts and the nature of scientific knowledge, a method he calls "historical epistemology." He applies this method to the history of sexuality, with important consequences for our understanding of desire, abnormality, and sexuality itself.

In Davidson's view, it was the emergence of a science of sexuality that made it possible, even inevitable, for us to become preoccupied with our true sexuality. Historical epistemology attempts to reveal how this new form of experience that we call "sexuality" is linked to the emergence of new structures of knowledge, and especially to a new style of reasoning and the concepts employed within it. Thus Davidson shows how, starting in the second half of the nineteenth century, a new psychiatric style of reasoning about diseases emerges that makes possible, among other things, statements about sexual perversion that quickly become commonplace in discussions of sexuality.

Considering a wide range of examples, from Thomas Aquinas to Freud, Davidson develops the methodological lessons of Georges Canguilhem and Michel Foucault in order to analyze the history of our experience of normativity and its deviations.

Few things come more naturally to us than sex—or so it would seem. Yet to a chimpanzee, the sexual practices and customs we take for granted would appear odd indeed. He or she might wonder why we bother with inconveniences like clothes, why we prefer to make love on a bed, and why we fuss so needlessly over privacy. Evolution and Human Sexual Behavior invites us into the thought-experiment of imagining human sex from the vantage point of our primate cousins, in order to underscore the role of evolution in shaping all that happens, biologically and behaviorally, when romantic passions are aroused.

Peter Gray and Justin Garcia provide an interdisciplinary synthesis that draws on the latest discoveries in evolutionary theory, genetics, neuroscience, comparative primate research, and cross-cultural sexuality studies. They are our guides through an exploration of the patterns and variations that exist in human sexuality, in chapters covering topics ranging from the evolution of sex differences and reproductive physiology to the origins of sexual play, monogamous unions, and the facts and fictions surrounding orgasm.

Intended for generally curious readers of all stripes, this up-to-date, one-volume survey of the evolutionary science of human sexual behavior explains why sexuality has remained a core fascination of human beings throughout time and across cultures.