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- Title
Maternal Inheritance and Familial Fecundity Factors in Male Homosexuality.
- Authors
Rahman, Qazi; Collins, Anthony; Morrison, Martine; Orrells, Jennifer; Cadinouche, Khatija; Greenfield, Sherene; Begum, Sabina
- Abstract
This study, following Camperio-Ciani, Corna, and Capiluppi [(), Proceedings of the Royal Society of London, Series B, Biological Sciences, 271, 2217–2221] aimed to examine the familial history of male homosexuality, and test the so-called “fertile female” hypothesis for this trait in a contemporary British sample. Using a comparative survey design, we found that white (comprising those of Anglo-European descent) and non-white (comprising ethnic “Blacks, “South Asians,” “East Asians,” “Hispanics,” and “Others”) homosexual men ( n = 147) had a significant excess of maternal but not paternal line male homosexual relatives compared to heterosexual men ( n = 155). We also found significantly elevated fecundity of maternal aunts of white homosexual men compared to white heterosexual men, whereas non-white heterosexual men showed elevated fecundities of almost every class of relative compared to non-white homosexual men. No significant excess of older brothers was found in homosexual compared to heterosexual men, irrespective of ethnic grouping. These data were discussed in relation to possible population-related factors in evolutionary explanations for human male homosexuality.
- Subjects
MALE homosexuality; HUMAN sexuality; FERTILITY; MEN'S sexual behavior; LIFE sciences; COMPARATIVE studies
- Publication
Archives of Sexual Behavior, 2008, Vol 37, Issue 6, p962
- ISSN
0004-0002
- Publication type
Article
- DOI
10.1007/s10508-007-9191-2