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  1. Evolutionary and cross-cultural perspectives on gamblingGray, Peter B. - Journal of Gambling Studies, 2004 - 6 Hypotheses

    This study uses evolutionary theory to hypothesize about the association between age, gender, and gambling. Results suggest that males are more frequent and riskier gamblers than females and that young adults are more likely to have gambling problems than people of other age classes.

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  2. Human–Pet Dynamics in Cross-Cultural PerspectiveGray, Peter B. - Anthrozoös, 2011 - 3 Hypotheses

    Using a sample of 60 societies from eHRAF, this study explores the cross-cultural commonalities and differences in human-pet dynamics. The authors focus on understanding the range of functions of pets and the positive or negative treatment of pets. In addition, they test whether human investment in pets is a significant challenge of evolutionary theory. First, the results support that there are distinct functions of pets, challenging the common view of contemporary function of pets as emotional surrogates. Secondly, the data collected show an ambivalent treatment of pets across cultures, including small-scale societies. Finally, the research does not support the idea that human investment in pets sacrifices their reproductive success.

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  3. Pubic Hair Removal Practices in Cross-Cultural PerspectiveCraig, Lyndsey K. - Cross-Cultural Research, 2018 - 3 Hypotheses

    Researcher's examine the presence of pubic hair removal (PHR) and retention in a cross-cultural setting, looking to see if such practices exist outside of the West, where it is well documented. Data from societies with PHR or retention from the eHRAF World Cultures sample were analyzed. Results indicate that PHR or retention exists cross-culturally without influence from the West. Commonly practiced for hygiene, women remove or retain pubic hair more often than men, with the main methods for removal being plucking.

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