This week we continue our series featuring book excerpts read by previous podcast guests. In this episode, Dr. David Geary, Curator’s Professor of Psychology at the University of Missouri-Columbia, reads Chapter One, “Evolution of Fatherhood” from his book, “Male, Female: The Evolution of Human Sex Differences”. We then rebroadcast his original interview (SoS 41, aired in May 2019), in which Dr. Geary discusses his path to these research topics, the applications, and the broader impacts of his research, as well as contention within the field regarding the bases of sex differences. To learn more about Dr. Geary, check out his webpage with the University of Missouri-Columbia at and a video interview on his latest research:

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