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US News. Gender-related traits of heterosexual and homosexual men and women. Some evolutionary models. Hull 1 1. ScienceDaily shares links with scholarly publications in the TrendMD network and earns revenue from third-party advertisers, where indicated. Absence of linkage to micro-satellite markers at Xq What's Working:

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To compensate for being childless, each fa'afafine would have to somehow support the survival of two additional nieces or nephews who would otherwise not have existed.

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Another possibility is that these sisters and other female relatives of gay men might have extra children, not on account of any assistance offered by the gay men, but by the direct action of 'gay male genes' within themselves. Archives of Sexual Behavior3183— Evolution and Human Behavior22—

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Conversely, 'lesbian genes' might increase the reproductive success of heterosexual men by the same mechanism.

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