NAPOLEON CHAGNON is a renowned anthropologist who is most widely recognized for his study of the Yanomamö tribes in the Amazon. He is a professor of anthropology at the University of Missouri; Author, Noble Savages: My Life Among Two Dangerous Tribes—the Yanomamö and the Anthropologists. The Conversation: https://www.edge.org/conversation/napoleon-chagnon-blood-is-their-argument