Abstract. Scientists have long puzzled over how homosexual orientation has evolved, given the assumed low relative fitness of homosexual individuals compared to heterosexual individuals. A number of theoretical models for the evolution of homosexuality have been postulated including balance polymorphism, "Fertile females", hypervariability of DNA sequences, kin selection, and "parental manipulation". In this paper, I propose a new group-selection model for the evolution of homosexuality which offers two advantages over existing models: (1) its non-assumption of genetic determinism, and (2) its lack of dependency on an inefficient altruism relation and family dynamics theory.
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Barrish D.P. 1977. Sociology and Behavior. Elsevier, New York.
Byne W. and Stein E. 1997. ‘Ethical Implications of Scientific Research on the Causes of Sexual Orientation’ Health Care Analysis 5: 136–148.
Cabaj.P. and Stein T.S. (eds) 1996. Textbook of Homosexuality and Mental Health. American Psychiatric Press, Inc., Washington.
Cantor J.M., Blanchard R., Paterson A.D. and Bogaert A.F. 2002. ‘How Many Gay Men Owe Their Orientation to Fraternal Birth Order?’ Archives of Sexual Behavior Feb. 63–71.
Dawkins R. 1989. The Selfish Gene. Oxford University Press, New York.
Gebhard P.H. and Johnson A.B. 1979. The Kinsey Data: Marginal Tabulations of the 1938– 1963 Interviews Conducted by the Institute for Sexual Research. W.B. Saunders Company, Philadelphia.
Getz W.M. 1993. ‘Invasion and Maintenance of Alleles that Influence Mating and Parental Success’ Journal of Theoretical Biology 515–537.
Hamer D.H., Hu S., Magnuson V.L., Hu N. and Pattatucci A.M.L. 1993. ‘A Linkage between DNA Markers on the X Chromosome and Male Sexual Orientation’ Science 261: 321–327.
Hamer D. and Copeland P. 1994. The Science of Desire. Simon & Schuster, New York.
Hutchinson G.E. 1959. ‘A Speculative Consideration of Certain Possible Forms of Sexual Selection in Man’ American Naturalist 81–93.
LeVay S. 1991. ‘A Difference in Hypothalamic Structure Between Heterosexual and Homosexual Men’ Science New Series 253,5023. 1034–1037.
Levay S. 1993. The Sexual Brain. The MIT Press, Cambridge.
LeVay S. 1996. Queer Science: The Use and Abuse of Research into Homosexuality. The MIT Press, Cambridge.
McKnight J. 1997. Straight Science?: Homosexuality, Evolution and Adaptation. Routledge, New York.
Makova K.D. and Li W.-H. 2002. ‘Strong Male-driven Evolution of DNA Sequences in Humans and Apes’ Nature 416: 624–626.
Ruse M. 1981. ‘Are there Gay Genes?: Sociobiology and Homosexuality’ Journal of Homosexuality 6Summer: 5–35.
Ruse M. 1988. Homosexuality: A Philosophical Inquiry. Basil Blackwell Ltd, Oxford.
Simpson E.H. 1951. ‘The Interpretation of Interaction in Contingency Tables’ Journal of the Royal Statistical Society B,13. 238–241.
Sober E. 1988. ‘What is Evolutionary Altruism’ In: Hull D.L. and Ruse M. (eds), The Philosophy of Biology. Oxford University Press, 1998, Oxford.
Sober E. and Wilson D.S. 1994. ‘A Critical Review of Philosophical Work on the Units of Selection Problem’ In: Hull D.L. and Ruse M. (eds), The Philosophy of Biology. Oxford University Press, 1998, Oxford.
Sober E. and Wilson D.S. 1998. Unto Others: The Evolution and Psychology of Unselfish Behaviors. Harvard University Press, Cambridge.
Stein E. 1998. ‘Essentialism and Constructionism about Sexual Orientation’ In: Hull D.L. and Ruse M. (eds), The Philosophy of Biology. Oxford University Press, Oxford.
Stein E. 1999. The Mismeasure of Desire: The Science, Theory, and Ethics of Sexual Orientation. Oxford University Press, Oxford.
Weinrich J.D. 1976. Human Reproductive Strategy, Doctoral dissertation, Harvard University (unpublished).
Young I.M. 1990. Justice and the Politics of Difference. Princeton University Press, Princeton.
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Kirby, J. A new group-selection model for the evolution of homosexuality. Biology & Philosophy 18, 683–694 (2003). https://doi.org/10.1023/A:1026321628276
- Genetic determinism
- Group selection
- Homosexual orientation