In today's episode, I spoke with Joyce Benenson about her book Warriors and Worriers: The Survival of the Sexes, where she explores the different evolutionary strategies that men and women developed in order to survive. We spoke about the reality of built-in sex differences, how men cooperate well in large groups, and how women compete in subtle ways.

Joyce Benenson is a lecturer of Human Evolutionary Biology at Harvard University. Her research has focused on the different ways boys and girls play with one another, exploring the sex's different strategies of cooperation and competition.