Book excerpt: "A clearly presented and terrifically detailed work from the perspective of human evolutionary life histories. Dr. Howell has written a text that manages to raise as many intriguing questions as it provides to answer."_Eric A. Roth, author of Culture, Biology, and Anthropological Demography "Nancy Howell's book on the Demography of the Dobe !Kung became an anthropological classic, the first in-depth analysis of the population structures and life histories of a foraging society. Three decades later, Howell returns to her initial data set to ask new questions inspired by Life History Theory. In the process she examines how variations in group composition impact the well-being of !Kung children, revealing that sharing is not just with one's closest relatives."_Sarah Blaffer Hrdy, author of Mothers and Others: The Evolutionary Origins of Mutual Understanding "This is a unique, scholarly book that reads like a detective novel. Howell uses demographic, anthropometric, and foraging data on the !Kung hunter-gatherers of Southern Africa to investigate what explains variation in the nutritional well-being of their children. Each chapter builds on the previous one, and through a process of elimination brings us closer to the answers, which are often surprising. Along the way, we see how food sharing is necessary to explain the peculiar elements of human life history."_Frank Marlowe, author of The Hadza: Hunter-Gatherers of Tanzania