A previous study conducted by Singh (2017) investigates why and how features of shamanism have culturally evolved, one such feature being shamanistic trance. However, the authors of this article argue that Singh fails to distinguish between different types of shamanistic trance. They find that possession trance, as compared to trance without possession, is primarily dominated by females and found in complex societies.

This study explores the research question: What socio-ecological factors are conducive to women’s hunting? Using life history theory and behavioral ecology as a base, the authors pose four hypotheses. The first hypothesis is that women will hunt when there are fewer conflicts with childcare. The second hypothesis is that women will hunt when there are fewer cultural restrictions regarding the use of hunting technology. The third hypothesis is that women will hunt when there are low-risk game within range of camp, dogs are used in hunting, or hunting is in groups. Lastly, the fourth hypothesis suggests that women will hunt when they play essential roles on informational tasks. There is enough evidence to support the third and fourth hypotheses. The study also shows that there is considerable evidence that women hunt cross-culturally.

Using data on 25 ethnolinguistic groups in the Austronesian language family, this study asks: does cooperation in games vary with socio-ecological differences across cultural groups? The authors suggest that cultural groups that cooperate in subsistence, tend to have intergroup conflict and less intragroup conflict, and are less socially stratified are more likely to play cooperative games compared to other groups. While the results support the first three hypotheses, there is insufficient data to support the fourth. The authors conclude that games serve as training ground for group norms and values.

This study uses Bayesian phylogenetic regression modelling across 131 largely non-industrial societies to test how variation of punishment is impacted by social, economic, and political organization. The authors focus on the presence of norm violations and types of punishments, and explores their relationships. The norm violations include adultery, rape, religious violations, food violations, and war cowardice. While the types of punishment are reputational, material, physical, or education. This study suggests a hypothesis for each type of punishment in relation to socioecological variables.

This study challenges the Big Gods hypothesis, which suggests that moral gods are a critical factor that preceded the evolution of complex societies. Using the Seshat database, the authors expanded the codebook and database of their retracted article (see notes). The results show significant support that sociopolitical complexity and moralizing gods are associated and that sociopolitical complexity appears to precede the presence of Big Gods. The authors also show some support that sociopolitical complexity might be a driving factor of moralizing gods. Still, they state that the results are incomplete since they only focus on the possibility of reciprocal causality.

This study challenges the Big Gods hypothesis, which suggests that moral gods are a critical factor that preceded the evolution of complex societies. Using the Seshat database, the authors expanded the codebook and database of their retracted article (see notes). The results show significant support that sociopolitical complexity and moralizing gods are associated and that sociopolitical complexity appears to precede the presence of Big Gods. The authors also show some support that sociopolitical complexity might be a driving factor of moralizing gods. Still, they state that the results are incomplete since they only focus on the possibility of reciprocal causality.

This study uses Bayesian phylogenetic regression modelling across 131 largely non-industrial societies to test how variation of punishment is impacted by social, economic, and political organization. The authors focus on the presence of norm violations and types of punishments, and explores their relationships. The norm violations include adultery, rape, religious violations, food violations, and war cowardice. While the types of punishment are reputational, material, physical, or education. This study suggests a hypothesis for each type of punishment in relation to socioecological variables.

Researchers investigated the variation of land tenure systems across forager societies using the economic defensibility model. The study attempted to explain the variation in tenure systems across 30 hunter-gatherer societies. Using data on defense and sharing of resources among groups, and indicators of resource density, resource predictability, and competition for resources, the researchers were unable to explain the variation. This study highlights the vast range of diversity and complexity of foragers subsistence strategies, and proposes that it may be more telling to conceptualize tenure systems among hunter-gatherer societies as assemblages of multiple property regimes. While there was no overall evidence that environmental variables of resource density and predictability explain variation in tenure systems, researchers did find that increasing population density, and greater competition for resources leads to greater territoriality.

This study explores the research question: What socio-ecological factors are conducive to women’s hunting? Using life history theory and behavioral ecology as a base, the authors pose four hypotheses. The first hypothesis is that women will hunt when there are fewer conflicts with childcare. The second hypothesis is that women will hunt when there are fewer cultural restrictions regarding the use of hunting technology. The third hypothesis is that women will hunt when there are low-risk game within range of camp, dogs are used in hunting, or hunting is in groups. Lastly, the fourth hypothesis suggests that women will hunt when they play essential roles on informational tasks. There is enough evidence to support the third and fourth hypotheses. The study also shows that there is considerable evidence that women hunt cross-culturally.

This article explores determinants of non-classical polyandry, which the authors assert is more common than is usually conveyed. Results indicate that societies with non-classical polyandry tend to be small scale and egalitarian, practice hunting and gathering or horticulture, and have a male-skewed sex ratio. Overall polyandry is thought to add to the reproductive fitness of both men and women.