This article tests four hypotheses regarding scarification, which is described as 1) a rite of passage, 2) a hardening/trauma procedure, 3) a nonadaptive sexually selected character, or 4) an adaptive pathogen driven sexually selected character. Only the third hypothesis is supported in a worldwide sample, suggesting that scarification is associated with polygyny. The other three are each supported in different regional subsamples—principally the first hypothesis (supported in Africa, the Insular Pacific, and South America).

Reputations are an important aspect of human social interactions and cooperation, but much of the research on reputations has focused on a narrow range of domains such as prosociality and aggressiveness. This study aims to provide an empirical view of reputation domains across different cultures by analyzing ethnographic texts on reputations from 153 cultures. The findings suggest that reputational domains vary across cultures, with reputations for cultural conformity, prosociality, social status, and neural capital being widespread. Reputation domains are more variable for males than females, and certain reputation domains are interrelated. The study highlights the need for future research on the evolution of cooperation and human sociality to consider a wider range of reputation domains and their variability across different social and ecological contexts and genders.

This study explores the concept of "healthy" and "sick" societies. The author considers indicators of stress as correlates of sick and healthy societies and finds that the best indicator of the sickness or healthiness of a society is its suicide rate.

In this article Hames addresses the long-standing disagreements between evolutionary theories regarding human warfare (more specifically between Rousseauian and Hobbesian frameworks). This study posits that while most current and previous research focuses on the discrepancies between the frequency and intensity with which warfare takes place between hunter-gatherer and large-scale societies, the ability for societies to live in peace with their neighbors despite the possibility for warfare, is the most important evolutionary trait. Coexisting peacefully is what distinguishes human socially and politically from chimpanzees whereas warfare itself is a more primitive trait humans share with previous ancestors. Hames concludes that going forward, use of phylogenetic methods to control for common ancestry, and use of archaeological data would lead to new and more comprehensive findings. Although largely a review of principal warfare literature, Hames does present an original statistical finding on adult violence mortality which is reported below.

This study negates the hypothesis that romantic love is unique to Euro-American culture and provides evidence of romantic love in the majority of cultures sampled.

Building on comparative study of the Mormons, Texans, and Zuni in the Rimrock area of Southwestern U.S., the authors cross-cultural test some hypotheses cross-culturally.

How and why have measurement systems evolved? Many early measurement systems were derived from parts of the body, such as the foot or cubit– the length from the elbow to the tip of the middle finger. Recent research has suggested that measurement systems transitioned through stages, from body-measurements to more complex standardized systems. However, through analyses of ethnographic data drawn from the Standard Cross-Cultural Sample, the authors find that the use of body-based measurement is still prevalent in most cultures worldwide, despite the development of standardized measurement systems. The authors posit that the persistence of body-based measurement is due to the advantages it holds over standardized measurement systems.

This article presents an attempt to cross-culturally test of the hypothesis that rituals and/or behavioral changes will be associated with menopause. Due to a lack of sufficient data, statistical analyses were not performed but an examination of the ethnographic literature on the topic is presented.

This study is a reexamination of Bacon's (1965) previous cross-cultural study regarding drinking. The current study supports the dependency-conflict hypothesis that frequency of drunkenness is related to dependency needs in childhood and adulthood.

The paper presents the preliminary findings of pilot studies testing the factors affecting the variation in rules regarding premarital sex cross-culturally. Only the trends emerging from the pilot studies are discussed. No findings are conclusive.