I describe an integrative hypothesis for the origin and evolution of human religious cognition and behavior. The hypothesis is based on kin selection, which leads to reduced competition and increased cooperation within family and small-scale groups, and generates novel forms of psychological kinship that foster cooperation in larger scale groups. The 'concept of God' is represented by, and orig...

Chemopreventive activities of the isoprenoids geranylgeraniol (GGO) and β-ionone (BI) were evaluated during initial phases of hepatocarcinogenesis. Rats received daily during 7 weeks 8 or 16 mg/100 g body weight GGO (GGO8 and GGO16 groups) or BI (BI8 and BI16 groups), or only corn oil (CO group, controls). Incidence (%) and mean number of visible hepatocyte nodules/animal were inhibited in GGO8...

This article evaluates origin theories of sex differences in human behavior by reviewing crosscultural distributions of sex-differentiated behavior. We examine the behavior of women and men in a wide range of nonindustrial societies, especially the activities that contribute to the sextyped division of labor and patriarchy. To explain these cross-cultural findings, we consider the perspectives ...

As the ancestors of both the great apes and humans began to separate into two lineages, several distinctions emerged and solidified for the separate genera. It is suggested here that the sequelae to sexually transmitted diseases (STDs) and subsequent behavioral tendencies to avoid sexually transmitted diseases played an important role in forging the unique character of the Australopithecine/Hom...