This paper presents findings from a preliminary cross-cultural survey of adult human female aggression. Cases of female-initiated aggres sion, ranging from verbal abuse to murder, are found in all regions of the world. Female aggression is largely directed against other females and generally involves little injury. Co-wives and other rivals in sex and marriage are the most common victims. Husbands are the most common male targets. Female aggression is often a means of competing for men or subsistence products, but it may also be a means of defense.

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This paper examines young people's perceived vulnerability to sexually transmitted infections (STIs) and their efforts to create a sense of personal safety within an environment in which risks may be high and where STIs are highly stigmatised. The paper reports on findings from research involving both Indigenous and non-Indigenous 16- to 25-year-olds from remote, rural and regional Australia, including communities in the Northern Territory, Western Australia and South Australia. The study used qualitative methods, including body mapping and scenario based interviewing, to explore how young people made decisions about potential sexual partners and how STIs were understood within the context of young people's everyday social worlds. The paper has important implications for the design and implementation of sexual-health education programmes by documenting the stigmatisation of young people with STIs and the protective mechanisms peer groups employ to create perceptions of personal safety.

The tension between cooperative and selfish impulses is a challenge for every society. But how is this problem perceived by individual participants in the context of a behavioral games experiment? We first assess individual differences in players' propensity to cooperate or defect in a series of experimental games.We then use open-ended interviews with a subset of those players to investigate the various concepts (or 'frames') they use when thinking about self-interested and cooperative actions. More generally, we hope to raise awareness of player's perceptions of experimental environments to inform both the design and interpretation of experiments and experimental data.

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