Dr. Marc J. Defant - Activism vs. Science - Evolutionary Psychology & Gender Differences
Fri Feb 06 2026
What happens when ideology collides with science?
In this episode of The Billy Dees Podcast, Billy sits down with Dr. Marc J. Defant, professor of geology and geochemistry at the University of South Florida and author of Voyage of Discovery: From the Big Bang to the Ice Age. Dr. Defant brings decades of scientific research—and a willingness to challenge academic orthodoxy—to a wide-ranging conversation about evolutionary psychology, biology, and the growing politicization of higher education.
Together, Billy and Dr. Defant explore why evidence still matters, how evolutionary psychology explains sex differences and human behavior, and where modern feminism and social constructionism clash with data. From masculinity and mate selection to the gender pay gap, academia, and the erosion of intellectual honesty, this episode cuts through culture-war noise with a grounded, unapologetically evidence-based discussion.
If you’re interested in science, free inquiry, and conversations that don’t pull punches, this is an episode you don’t want to miss.
Billy Dees Links https://linktr.ee/BillyDees
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What happens when ideology collides with science? In this episode of The Billy Dees Podcast, Billy sits down with Dr. Marc J. Defant, professor of geology and geochemistry at the University of South Florida and author of Voyage of Discovery: From the Big Bang to the Ice Age. Dr. Defant brings decades of scientific research—and a willingness to challenge academic orthodoxy—to a wide-ranging conversation about evolutionary psychology, biology, and the growing politicization of higher education. Together, Billy and Dr. Defant explore why evidence still matters, how evolutionary psychology explains sex differences and human behavior, and where modern feminism and social constructionism clash with data. From masculinity and mate selection to the gender pay gap, academia, and the erosion of intellectual honesty, this episode cuts through culture-war noise with a grounded, unapologetically evidence-based discussion. If you’re interested in science, free inquiry, and conversations that don’t pull punches, this is an episode you don’t want to miss. Billy Dees Links https://linktr.ee/BillyDees