Explores 109 traits relating primarily to physical habitat, economy, political and social organization, and religion, to see how they relate to the role and treatment of the aged. General patterns were sought. Numerous ethnographic examples are given.

Explores 109 traits relating primarily to physical habitat, economy, political and social organization, and religion, to see how they relate to the role and treatment of the aged. General patterns were sought. Numerous ethnographic examples are given.

Explores 109 traits relating primarily to physical habitat, economy, political and social organization, and religion, to see how they relate to the role and treatment of the aged. General patterns were sought. Numerous ethnographic examples are given.

Explores 109 traits relating primarily to physical habitat, economy, political and social organization, and religion, to see how they relate to the role and treatment of the aged. General patterns were sought. Numerous ethnographic examples are given.

Explores 109 traits relating primarily to physical habitat, economy, political and social organization, and religion, to see how they relate to the role and treatment of the aged. General patterns were sought. Numerous ethnographic examples are given.

Explores 109 traits relating primarily to physical habitat, economy, political and social organization, and religion, to see how they relate to the role and treatment of the aged. General patterns were sought. Numerous ethnographic examples are given.

This article uses signaling theory and tests for a relationship between costly male rites and frequency of warfare.

This exploratory study seeks to explain cassava production and processing in Africa by considering cultural, agronomic, and environmental data. After examining the descriptive results of the agricultural and social contexts of cassava use, the authors build upon Boserup's population density model (1965) to analyze their own hypothesized model of cassava's importance among the sampled societies.

The present research investigates food sharing and labor sharing practices of 98 nonindustrial societies. The aims are to: 1) document the frequency and scope of sharing, and 2) test the theory that greater sharing is adaptive in societies subject to more resource stress (including natural hazards).

This article builds on previous cross-country and cross-state research into Tightness-Looseness (TL) theory, which proposes relationships between the incidence of ecological threat and cultural tightness, as well as tightness’ downstream effects on belief in a moralizing high god, inter-group contact and authoritarian leadership. To evaluate the generalizability of TL theory beyond complex cultures, the authors test these relationships among 86 nonindustrial societies from the ethnographic record. A structural equation model is presented of the results for nonindustrial societies; it is generally in accord with previous findings from more complex societies. Because the nonindustrial sample is more variable, they also look at relationships between societal complexity and kinship heterogeneity, aspects that vary in nonindustrial societies.