This article suggests that Wilson's definition of sociobiology, which incorporates underlying principles of animal social behavior, can be applied to human bahvior. Specifically, Wilson's assertion that the major ecological conditions associated with monogamy in animal societies, is tested on human societies.

Munroe and Fought attempt to add new perspective to Ember and Ember's (2007) assertion that certain environmental features help to predict mean sonority levels in speech. This article discusses the other possible elements such as word length that might raise the level of communicative efficiency.

The present study explores the cognitive and affective attitudes towards owls in cold-climate and warm-climate societies. In addition, a few hypotheses were tested. Specifically, the research question asks which societies would have greater owl ethnozoological knowledge, functional usage, conception of owls in positive magico-religious terms, and positive supernaturalistic interpretations of owls' behaviors and characteristics. The results offer support for the initial predictions with the exception that cold-climate societies do not have more positive magico-religious conceptions of owls than warm-climate societies.

In order to evaluate previous claims of association between reliance on fishing and matrilineal inheritance practices, the researchers test the association between matriliny and reef density within a 10 km radius among the 186 societies of the Standard Cross Cultural Sample (SCCS). A positive correlation between these variables is complemented by a supplementary analysis of 56 villages in the Solomon Islands, intended to control for phylogenetic and demographic impacts on incidence of matriliny. The authors conclude that ecological factors such as reef density can and do have a direct effect on inheritance rules, with potential secondary effects on welfare and economic development.

This article focuses on the effect of environmental extremes and unpredictability on human behavior and reproductive strategies. Significant correlations were found between environmental extremes and unpredictability and several variables, including mobility, subsistence mode, and degree of polygyny.

This article examines height and sexual dimorphism of stature from a sociobiological perspective. Diet, child rearing, and marriage practices are tested as possible factors contributing to height sexual dimorphism of stature. Results provide some support for a nutritional hypotheses, but sexual selection and parental investment are not statistically significant.

This article examines institutionalized male transvestism and the couvade, finding that they are mutually exclusive in a cross-cultural sample. Possible explanations for the negative association between male transvestism and the couvade (e.g. sex-identity differentiation and confusion) are discussed.

Authors hypothesize that grammatical sex gender may be related to social structural variables. Results support this hypothesis and suggest that the degree of sex bias in the social structure is associated with the relative frequency of masculine and feminine nouns in languages with sex gender.

This study examines whether language construction, specifically the number of consonant-vowel syllables, will be related to the environment and literacy of a society. Empirical analysis suggests that consonant-vowel syllables are more common in warmer climates and less common in written languages.

Inter-group variation is greater in humans than in any other animal, and scholars continue to debate the cause of this diversity. Two competing explanatory models of human variation emphasize either (1) ecological differences and "evoked" culture or (2) population-level effects of cultural transmission. The former emphasizes mechanisms that operate within a single generation, while the latter emphasizes cumulative cultural history operating over many generations. To test these competing models, the authors measured the relative power of ecological variables as compared to culture history to predict behavioral variation in 172 western North American tribes. Culture history is subdivided into culture phylogeny (based on language phylogeny) and spatial distance.