Meredith Chivers is an assistant professor and Director of the Sexuality & Gender Laboratory in the Psychology Department at Queen’s University in Ontario, Canada. She received her Ph.D. in clinical psychology from Northwestern University and completed post-doctoral research training at the University of Toronto’s Centre.

Marc Breedlove has written over 100 scientific articles investigating the role of hormones in shaping the developing and adult nervous system, publishing in journals including Science, Nature, and Nature Neuroscience, as well as two textbooks, Biological Psychology and Behavioral Endocrinology.

Jim Pfaus has sex on the brain. An internationally known expert in the neurobiology of sexual behavior, Pfaus has authored over 150 publications and chapters that examine how the brain’s neurochemical and neuroanatomical systems are organized for sexual arousal, desire, pleasure, and inhibition.

If reproduction is the engine that drives evolution, why engage in non-conceptive sex? In his attempt to tackle this question, Paul Vasey employs concurrent cross-species and cross-cultural perspectives.