DIFFERENT

What humans can learn from anthropoid apes.

World-renowned primatologist de Waal draws on a long career of investigating chimpanzees and bonobos—both equally close to humans genetically—to argue with wit and clarity against assumptions about sex and gender that generate inequality. With anthropoid apes his main focus, the author also looks to many other species (mice, tortoises, marmosets, and whales, among them) for evidence in responding to salient questions: Does the behavior of men and women differ naturally, or is it culturally determined? Are there only two genders? Does gender account for differences in intelligence, aggression, leadership, cooperation, and competition? Are females naturally more empathetic than males? The author demonstrates how chimpanzees and bonobos are studies in contrast. Chimpanzee society “is aggressive, territorial, and run by males. Bonobos are peaceful, sex-loving, and female dominated.” Yet de Waal highlights similarities between the sexes in both societies—in intelligence, cooperation, and competition, for example, and even in leadership. Although males are generally larger and the “overwhelming source” of physical violence, still, “violence is not their default condition,” nor is it the only way an ape can exert power. Debunking theorists who insist that all behavior is dictated by genetic inheritance, de Waal underscores the “dynamic interplay between genes and the environment.” As for sexual behavior and identity, the author asserts that being transgender “is intrinsic and constitutional”—i.e., “the opposite of socially constructed.” Same-sex behavior is found among penguins as well as 450 other species, including humans’ close relatives anthropoid apes, and de Waal notes the prevalence of “female sexual adventurism,” which contradicts the idea that males are sexually insatiable. “It’s time to abandon the myth that men have a stronger sex drive and are more promiscuous than women,” he writes. The author enlivens his pages with attentive, sometimes moving portraits of animals he has encountered as well as anecdotes about his own experiences as one of six brothers.

Engaging, enlightening, and deeply informative.