The association between hunting and sign language is examined. It is hypothesized that sign language develops as a form of nonverbal communication to aid hunters in the coordinated stalking of game. Ethnographic evidence supports this hypothesis. A second hypothesis is also tested concerning the relationship between population size and non-verbal communication, however sampling procedures provided an inadequate test of this hypothesis.

Author proposes and presents evidence in support of the theory that most societies practice virilocal or patrilocal residence (this is the "normal" pattern" and that matrilocal residence is adopted when societies migrate to an already populated area.

This study suggests that animals' avoidance of human menstrual odor could be a factor affecting menstrual taboos in societies that depend on hunting. Results indicate a significant, positive relationship between dependence on hunting and menstrual taboos.

This article hypothesizes that ritual ecstasy was selected for as a way for hunter-gatherers to cope with resource uncertainty by unifying separate groups. Results support this hypothesis and suggest a relationship between resource stress and deities as well as dependence on animals and presence of zoomorphic deities.

This study focuses on the factors associated with the development and persistence of an ideology of male supremacy. Authors identify several realms of culture that show a clear male preference and suggest that warfare is the most significant cause of the male supremacy complex in preindustrial societies. Authors hypothesize that warfare will be positively related to female infanticide. Results support this hypothesis. Another hypothesis relating diet to warfare and infanticide is provided, but not tested.

A model for the development of counting systems is tested. The hypothesis presented predicts that unpredictable climate conditions result in inconsistent food supply which leads to the need for food storage and, thus, a system to account for the stored food. Results strongly support this hypothesis.

A model for the development of counting systems is tested. The hypothesis presented predicts that unpredictable climate conditions result in inconsistent food supply which leads to the need for food storage and, thus, a system to account for the stored food. Results strongly support this hypothesis.

This study uses logistic regression to test the relationship between homosexuality and ecological and psychosocial variables. Significant associations were found between the frequency of homosexuality and type of agriculture, the occurrence of gathering, and psychosocial stressors in women's lives.

This study examines the relationship between drug foods and colonialism in relation to labor and trade. Relationships were found between political complexity, subsistence type, and the use of drug foods as labor and trade enhancers and inducers.

This study tests the common belief that hunter-gatherers suffer more famine than other subsistence types. Controlling for habitat quality, authors examine the relationship between famine and subsistence type and find that hunter-gatherers actually experience significantly less famine than other subsistence types.