This paper seeks to understand the roles played by children and adolescents in hunter-gatherer societies in relation to their social and ecological context. The authors set out to investigate how environmental factors, ecological risk, and the energetic contributions of adult men and women to food production may have influenced children/adolescent allocation of time to child care, domestic work, food production, and play. In order to carry out this study, the authors logged the behaviors of 690 children and adolescents from twelve hunter-gatherer and mixed-subsistence societies (Agta, Aka, Baka, BaYaka, Dukha, Hadza, Matsi-genka, Maya, Mayangna, Mikea, Pume, and Tsimane), totaling 85,597 unique observations. The study found that harsh environmental factors were not associated with child/adolescent time allocation, but that local ecological risk such as dangerous animals and lack of water availability predicted decreased time allocation to child care and domestic work, and that increased adult female participation in food production was associated with less time invested in child care among boys. It also found that all gendered differences in time allocation among children were stronger when men made greater contributions to food production than women. The authors interpret these results to signify that parents may play a role in preparing their children for environmental and ecological difficulty in order to help them develop skills that will help them become useful community members as adults.

Authors suggest that in a majority of studied societies, kin of the deceased tend to engage ritually in risky prolonged and intimate preparation behaviors with corpses. This occurs namely in visual exposure and tactile interaction. Authors hypothesize that this extended contact not only allows true confirmation of death (through exposure to many cues), but also facilitates acceleration of a grieving process that returns the bereaved to a normal state of social functioning.

Using 57 cultures from the Human Relations Area Files database, this paper examines the function and effectiveness of the belief of punitive ancestors in small-scale societies. The authors found that belief in dangerous ancestral entities is widespread and common and that harm is preventable through ritualized mortuary practices. The authors concluded that the fear of ancestral spirits did not promote social cooperation or inhibit self-interest behavior, contrary to the supernatural punishment hypothesis.

This study explores predictors of variation in two dimensions of marital residence patterns among hunter-gatherers: 1) the tendency toward patrilocality versus matrilocality and 2) the tendency toward unilocality versus bilocality.

In order to evaluate an adaptive justification for restriction of ritualized physical contact, the authors test association between three manifestations of physical interaction and prevalence of pathogens cross-culturally. Their expectation, supported by two of the three tested hypotheses, is that higher pathogen prevalence will lead to customs of restricted physical contact. Both cultural and biological evolution are suggested to be influential in selecting for physically intimate behaviors.

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 uses the Standard Cross-Cultural Samples to test the relationship between disease and economic growth among sub-Saharan African societies. The authors suggest that a higher disease prevalence limits social integration and economic development since pre-colonial times. The variable measuring economic growth is the complexity of large or impressive structures. The hypotheses are that 1) pathogen stress is negatively correlated to the presence of complex buildings, and 2) pathogen stress is positively correlated to increased ethnic diversity. The results support both hypotheses, and there are additional results, like 1) the negative correlation between pathogen stress and current income per capita and 2) the negative correlation between the increased ethnic diversity and current income per capita. Overall, this article shows the robust relationship between disease and economic development.

This study relates the type of games present in a society to the level of cultural complexity. Authors use a "game-type combination scale" that categorizes societies as having: 1) games of physical skill only; 2) games of physical skill and games of chance; and 3) games of physical skill, games of chance, and games of strategy. Results show a relationship between the game-type combination scale and indicators of cultural complexity.

This article considers the consequences of modernization. Factor analysis is used to identify four stages of modernization: 1) changes in education, government, and trade; 2) changes in health, technology, and transportation; 3) changes in family, religion, and toilet; and 4) changes in behavior. The authors then consider five trends they expect to be associated with modernization and test whether they develop over the course of the four stages. Results indicate that these 5 trends—increased cultural complexity, female status, pacification, suicide, and social stress—are associated with only the first and fourth stages.

This article investigates a cultural patterning of altered states of consciousness. The authors use an ordinal variable for a society's trance type; its four levels are 1) trance, 2) trance and possession trance, 3) possession trance, and 4) neither type. Results suggest that trance type is associated with measures of societal complexity and subsistence economy. Regional differences and the effects of diffusion are also examined.