
Steve Stewart-Williams
Evolutionary psychologist, Professor of Psychology at the University of Nottingham Malaysia, and author of books including A Billion Years of Sex Differences and The Ape That Understood the Universe. His public work focuses on evolutionary psychology, sex differences, nature–nurture questions, altruism, and human behavior.
Sex Differences Are Real, Overlapping, and Morally Non-Prescriptive
Evolutionary psychologist Steve Stewart-Williams argues that sex differences can be real, partly evolved and socially consequential without justifying unequal treatment or fixed roles. In a wide-ranging discussion with Chris Williamson, he says the evidence points against purely social explanations for many average differences in interests, sexuality, aggression, parenting, health and personality, while stressing that overlap between men and women is large and individual freedom should govern policy and personal life.
Women’s Erotic Preferences Skew Toward Romance Fiction Over Visual Porn
Evolutionary psychologist Steve Stewart-Williams argues that women’s lower consumption of visual pornography does not mean they are less sexual, but that male and female erotic interests often take different forms. In a discussion with Chris Williamson, he says men’s stronger average response to visual sexual cues helps explain their heavier use of pornography, while Williamson suggests romance fiction may function as a more socially acceptable and relationally framed erotic format for many women. Both reject the simple version of the claim that men want sex and women want love, noting that long-term bonding remains important to both sexes.
Sperm Donor Preferences Mirror Ordinary Mate Preferences
Chris Williamson and evolutionary psychologist Steve Stewart-Williams examine why women’s preferences for sperm donors appear to resemble their preferences in ordinary mate choice, even when sex, courtship and attraction are removed from the decision. Stewart-Williams argues that the pattern suggests donor choice exposes the genetic component of mate preferences, while their discussion of campus proposition studies shows how sexual willingness is shaped not only by desire but also by risk, status and the meaning of being approached.