"A penetrating look at the ways we have evolved ... comparing practices of traditional societies and modern and industrialized societies. Diamond draws on his fieldwork in New Guinea, the Amazon, Kalahari, and other areas to compare the best and most questionable customs and practices of societies past and present. Diamond does not idealize traditional societies, with smaller populations and more interest in maintaining group harmony than modern societies organized by governments seeking to maintain order, but he does emphasize troubling trends in declining health and fitness as industrialization has spread to newly developing nations. In this fascinating book, Diamond brings fresh perspective to historic and contemporary ways of life with an eye toward those that are likely to enhance our future."—Booklist