The Infinite Monkey Cage The Infinite Monkey Cage

Monkey Business - Robin Dunbar, Dave Gorman and Jo Setchell

Dec 17, 2025 · 42m

Summary

Hosted by Brian Cox and Dave Gorman, this episode explores the romantic and sexual behaviors of primates with evolutionary psychologist Robin Dunbar and anthropologist Joe Sertiche. The guests discuss how factors like food distribution influence monogamy versus polygamy, the role of scent and genetics in mate selection, and the cognitive limits of social groups, including Dunbar’s Number. They also address same-sex behavior and the concept of love, concluding with a lighthearted segment on what species of monkey each guest would choose to be.

Topics discussed

Intro: Antalya travel and Kleenex ad Brian's childhood monkey encounter and show premise Introduction of panelists and Mandrill research Defining monkey romance and friendship Group size, food distribution, and monogamy Dunbar's number and brain size correlations Facebook data and primate social network limits The synchrony problem and cognitive ceilings Family bonds and the 'pin-up' monkey concept Mandrill color, rank, and female mate choice Immune genes, smell, and human perfume choices Humorous exchange on buying perfume for wife Ape sexual complexity and bonobo fashion Sponsor reads: Whole Foods, Eminem, Greenies, Lincoln Causal reasoning vs. social intelligence in primates Monogamy, brain size, and anthropomorphism Oxytocin, bonding hormones, and same-sex pairs Measuring love: behavior vs. neural patterns The limits of knowing animal subjective experience Monkey sex: pleasure, social bonding, and solo acts Same-sex relationships in primates and humans Defining love in research and cultural variations Clipspringers and choosing a primate identity Outro: Chimp lip-syncing and credits Teaser for next episode: Toddler emotions Zuva medication disclaimer
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