Dr. Christine Drea of Duke University joined the show to talk about mechanisms of female dominance, which is when females of a species are more dominant in groups than males. Dr. Drea looks at how genetics, hormones, and social dynamics interact with each other to result in female dominance in hyenas, meerkats, and lemurs.

Content warning: We talk about animal genitalia and hyenas' traumatic birthing process.

Books, articles, and media mentioned in this episode + helpful sites and articles:

• Dr. Drea’s faculty page at Duke University
• Dr. Drea’s website
• Dr. Drea’s ResearchGate profile
• Dixons, A. (2012). Primate Sexuality: Comparative Studies of the Prosimians, Monkeys, Apes, and Humans. Oxford University Press.
• Ellison, P. (2003). On Fertile Ground: A Natural History of Human Reproduction. Harvard University Press.
• Grebe, Nicholas & Sheikh, Alizeh & Ohannessian, Laury & Drea, Christine. (2023). Effects of Oxytocin Receptor Blockade on Dyadic Social Behavior in Monogamous and Non-Monogamous Eulemur. Psychoneuroendocrinology. 150. 106044. 10.1016/j.psyneuen.2023.106044.
• Bornbusch, Sally & Clarke, Tara & Hobilalaina, Sylvia & Reseva, Honore & LaFleur, Marni & Drea, Christine. (2022). Microbial rewilding in the gut microbiomes of captive ring-tailed lemurs (Lemur catta) in Madagascar. Scientific Reports. 12. 10.1038/s41598-022-26861-0.
• Drea, Christine & Grebe, Nicholas. (2022). Intraspecific Aggression and Social Dominance. (chapter in The Routledge International Handbook of Comparative Psychology, ed. by Freeberg, Ridley, and d'Ettorre)
• Bornbusch, Sally & Greene, Lydia & Rahobilalaina, Sylvia & Calkins, Samantha & Rothman, Ryan & Clarke, Tara & LaFleur, Marni & Drea, Christine. (2022). Gut microbiota of ring-tailed lemurs (Lemur catta) vary across natural and captive populations and correlate with environmental microbiota. Animal Microbiome. 4. 10.1186/s42523-022-00176-x.
• Grebe, Nicholas & Sheikh, Alizeh & Drea, Christine. (2022). Integrating the female masculinization and challenge hypotheses: Female dominance, male deference, and seasonal hormone fluctuations in adult blue-eyed black lemurs (Eulemur flavifrons). Hormones and Behavior. 139. 105108. 10.1016/j.yhbeh.2022.105108.
• Drea, Christine & Davies, Charli & Greene, Lydia & Mitchell, Jessica & Blondel, Dimitri & Shearer, Caroline & Feldblum, Joseph & Dimac-Stohl, Kristin & Smyth-Kabay, Kendra & Clutton-Brock, Tim. (2021). An intergenerational androgenic mechanism of female intrasexual competition in the cooperatively breeding meerkat. Nature Communications. 12. 10.1038/s41467-021-27496-x.
• Conley, Alan & Place, Ned & Legacki, Erin & Hammond, Geoffrey & Cunha, Gerald & Drea, Christine & Weldele, Mary & Glickman, Stephen. (2020). Spotted hyaenas and the sexual spectrum: reproductive endocrinology and development. Journal of Endocrinology. 247. 10.1530/JOE-20-0252.
• Smyth, Kendra & Caruso, Nicholas & Davies, Charli & Clutton-Brock, Tim & Drea, Christine. (2018). Social and endocrine correlates of immune function in meerkats: Implications for the immunocompetence handicap hypothesis. Royal Society Open Science. 5. 180435. 10.1098/rsos.180435.
• Drea, Christine & Coscia, Elizabeth & Glickman, Stephen. (2018). Hyenas. (chapter in The Encyclopedia of Reproduction from Academic Press, ed. Michael Skinner)