Legendary anthropologist Sarah Blaffer Hrdy gave us the term “allomother,” and by extension, “alloparent”—the pioneering idea that mutual care is the reason we’ve evolved to be the humans we are today. Hrdy, who is professor emerita at the University of California, Davis, has just written a new (and stunning) book, called Father Time: A Natural History of Men and Babies. Today, we talk about what she’s learned about human culture over the course of her long career, and the impact of her elegant hypothesis.

See more about this episode and guest on my Substack.

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