Jonathan Bastian talks with primatologist Frans de Waal, author of “Different: Gender Through the Eyes of a Primatologist,” about his studies on the male and female behavior patterns of chimpanzees and bonobos. Later, neuroscientist Lise Eliot, author of “Pink Brain, Blue Brain: How Small Differences Grow Into Troublesome Gaps,” on the differences and similarities in the male and female brain — are men and women hardwired differently, or is the brain a unisex organ?
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