This paper reviews the results of the author's cross-cultural studies of war and aggression and their implications for prehistory.

This book investigates reproductive rituals in preindustrial societies. Major theories are discussed, and cross-cultural tests of several variables (fraternal interest groups, menarcheal ceremonies, puberty ceremonies, residence, circumcision, birth practices, segregation practices, etc.) are conducted.

This book investigates reproductive rituals in preindustrial societies. Major theories are discussed, and cross-cultural tests of several variables (fraternal interest groups, menarcheal ceremonies, puberty ceremonies, residence, circumcision, birth practices, segregation practices, etc.) are conducted.

This article investigates peer relations in infancy, both in primates and in preindustrial human societies. Data from these populations shows a strong tendency toward a multi-age composition of play groups rather than solely peer-aged play groups for infants. Patterns in child care across societies of different subsistence types are empirically examined.

This article reassesses the question of relative peacefulness/violence of preindustrial societies. It tests two materialist theories suggesting that more advanced subsistence techniques and population pressure will increase the likelihood of warfare.

This book investigates reproductive rituals in preindustrial societies. Major theories are discussed, and cross-cultural tests of several variables (fraternal interest groups, menarcheal ceremonies, puberty ceremonies, residence, circumcision, birth practices, segregation practices, etc.) are conducted.

This book investigates reproductive rituals in preindustrial societies. Major theories are discussed, and cross-cultural tests of several variables (fraternal interest groups, menarcheal ceremonies, puberty ceremonies, residence, circumcision, birth practices, segregation practices, etc.) are conducted.

This book investigates reproductive rituals in preindustrial societies. Major theories are discussed, and cross-cultural tests of several variables (fraternal interest groups, menarcheal ceremonies, puberty ceremonies, residence, circumcision, birth practices, segregation practices, etc.) are conducted.

"This article provides a set of codes that rate the starvation and famine experiences of societies in the Standard Cross-Cultural Sample. The codes are used to test several theoretical generalizations regarding the underlying causes of famine." Results indicate that seasonal starvation and direct entitlements are the strongest predictors of famine.

The authors construct a mathematical model from which they generate their main hypothesis that resource unpredictability should be associated with frequency of warfare. A cross-cultural test of this hypothesis was performed by Ember and Ember (1992). The authors critique these findings for state societies and test and alternate hypothesis for application to state societies.