Felix Warneken and Robert Sapolsky on the Softer Side of Primates

Scientific studies that highlight the nicer side of humans and our primate relatives: In part one of the show, developmental psychologist Felix Warneken looks for and finds evidence of instinctive altruism in young humans and chimps. In part two, neurobiologist Robert Sapolsky discovers that even baboons--long believed to be incorrigibly violent--can change their ways and get along.