Our Inner Ape: A Leading Primatologist Explains Why We Are Who We Are

One of the world’s great primatologists and a renowned expert on social behavior in apes presents the provocative idea that our noblest qualities—generosity, kindness, altruism—are as much a part of our nature as our baser instincts.

As genetically similar to man as the chimpanzee, the bonobo has a temperament and a lifestyle vastly different from those of its genetic cousin. Where chimps are aggressive, territorial, and hierarchical, bonobos are gentle and loving.

While the parallels betwee...