This book discusses the characteristics of adolescence cross-culturally and examines the differences in the adolescent experience for males and females. Several relationships are tested in order to gain an understanding of cross-cultural patterns in adolescence.

This paper is concerned with the variation in sexual behavior in humans. Authors test hypotheses regarding the relationships between sexual behaviors and beliefs concerning sex.

Textor summarizes cross-cultural male initiation rites findings pertaining to cultural, environmental, psychological, and social phenomena.

"The kin selection hypothesis posits that male androphilia evolved because androphilic males invest more in kin, thereby enhancing inclusive fitness." However, increased kin-directed altruism has only been seen in societies that exhibit transgendered male androphilia. To test the validity of the kin selection hypothesis for male androphilia, the authors examine the relationship between ancestral sociocultural conditions, access to kin, and societal reactions to homosexuality and the expression of male androphilia as transgendered or non-transgendered. They find that ancestral sociocultural conditions and bilateral and double descent systems were more common in transgendered than non-transgendered societies.

The researchers recode Broudeand Greene's (1976) SCCS data in order to distinguish between 'rare and absent' and different types of culturally-mediated same sex behavior, and to expand available data by including documents outside the SCCS. Their procedure suggests that androphilia is present in 57.5 - 83.6% and same-sex behavior present in 91.1% of all societies. They argue that these new data qualify androphilia as a context-dependent human universal, defined by Chapais (2014) as "patterns of behaviors that invariably or consistently arise in specific social circumstances in some cultures or population segments." (Hames et al. 69)

This study explores the extent to which heterosexual sex, love, and intimacy are interrelated and the degree to which the sexual revolution has had a positive or negative impact on male-female relationships. The author employs a correlation matrix to examine the interrelationships of several variables related to aloofness and intimacy in the sexual and non-sexual aspects of heterosexual relationships. Results suggest that the sexual revolution has had some positive effects on male-female relationships, but also that sexual behavior does not predict the degree to which marriages are intimate or aloof. Results also show little support for the hypothesis that marital aloofness is related to hypermasculinity.

This study employs a psychological theory and builds on the holocultural literature on male homosexuality. Two hypotheses relating homosexual behavior among men to social constructs for sexuality (the couvade, male transvestism) are derived from a study by Munroe (1980). The hypotheses are tested and supported in a sample of cultures drawn from Munroe's codes and the Human Relations Area Files.

Researchers sampled 48 societies cross-culturally to study the genetic survival of male homosexual preference, which is argued to be deleterious in nature due to its fertility costs. The researchers test for a sexually antagonistic factor that would produce a pleotropic advantage, such as male homosexual preference increasing the reproduction of sisters. Utilizing theoretical models, researchers assert that the survival of male homosexual preference is a result of the positive association between social stratification and discriminate female hypergyny due to selection for attractiveness in females.

This study attempts to replicate earlier findings regarding transvestism using a larger sample and a different index of sex distinctions. It is asserted that societies that maximize sex distinctions will not have institutionalized male transvestism.

This book chapter builds on Horton's 1943 psychoanalytical study of drunkenness. The author tests an overall theory that drunkenness, which facilitates personal and uninhibited interactions, is more acceptable, and therefore prevalent, in societies with loose, rather than rigid, social relationships. Indicators of social rigidity, such as strict socialization or male dominance through patrilocality, are tested for relationships to drunkenness.