We Homo sapiens can be the nicest of species and also the nastiest. What occurred during human evolution to account for this paradox? What are the two kinds of aggression that primates are prone to, and why did each evolve separately? How does the intensity of violence among humans compare with the aggressive behavior of other primates? How did humans domesticate themselves? And how were the acquisition of language and the practice of capital punishment determining factors in the rise of culture and civilization? Authoritative, provocative, and engaging, The Goodness Paradox offers a startlingly original theory of how, in the last 250 million years, humankind became an increasingly peaceful species in daily interactions even as its capacity for coolly planned and devastating violence remains undiminished. In tracing the evolutionary histories of reactive and proactive aggression, biological anthropologist Richard Wrangham forcefully and persuasively argues for the necessity of social tolerance and the control of savage divisiveness still haunting us today. Dr. Richard Wrangham is Ruth B. Moore Professor of Biological Anthropology, Harvard University. He is the author of Catching Fire: How Cooking Made us Human and Demonic Males: Apes and the Origins of Human Violence. He has studied wild chimpanzees in Uganda since 1987 and received a MacArthur Foundation fellowship and is a fellow of the American Academy of Arts and Sciences of the British Academy. Dr. Wrangham and Dr. Shermer discuss: • the paradox of Homo sapiens • the two types of aggression: proactive and reactive • the evolutionary origins of aggression and the logic behind it • the neural pathways of aggression • how species can be both artificially and self-domesticated • the tyrant/bully problem and how our ancestors solved it • war and human nature. Listen to Science Salon via iTunes, Spotify, Google Play Music, Stitcher, iHeartRadio, TuneIn, and Soundcloud. This Science Salon was recorded on March 5, 2019. You play a vital part in our commitment to promote science and reason. If you enjoy the Science Salon Podcast, please show your support by making a donation, or by becoming a patron.