Evolution of Homosexuality

  title={Evolution of Homosexuality},
  author={Vincent Savolainen and Jason A. Hodgson},
  journal={Encyclopedia of Evolutionary Psychological Science},

Kohlberg’s Moral Development Theory and Evolutionary Morality Model on Views of Homosexuality

The most well-known theory of morality is Lawrence Kohlberg’s stage theory of moral development. However, Kohlberg’s theory does not come without criticism. Other theorists and researchers have

Investigating and explaining sex differences in episodic memory

Sex differences can be seen in a lot of different areas, one of them being cognition where, among other things, men tend to perform better at more spatial tasks and women at more verbal. When it

Did Prosociality Drive the Evolution of Homosexuality?

  • S. Luoto
  • Psychology
    Archives of sexual behavior
  • 2020



Adaptive topography of fluctuating selection in a Mendelian population

  • R. Lande
  • Biology
    Journal of evolutionary biology
  • 2008
An adaptive topography is derived for a large randomly mating diploid population under weak density‐independent selection in a fluctuating environment with influence of fitness correlation between genotypes.

Human oestrus

It is proposed that the term oestrus appropriately applies to this phase of female sexuality occurring near ovulation, and ways that fertile-phase sexuality in women has been shaped to partly function in the context of extra-pair mating are suggested.

Heritable factors influence sexual orientation in women.

Heritabilities were significant using a wide range of assumptions about both the base rate of homosexuality in the population and ascertainment bias and self-reported history of childhood gender nonconformity.

The Evolution of Human Homosexual Behavior1

Three adaptationist hypotheses are reviewed here and compared with the anthropological literature and support is strongest, however, for the hypothesis that homosexual behavior comes from individual selection for reciprocal altruism.

Genome-wide scan demonstrates significant linkage for male sexual orientation

A genome-wide linkage scan on 409 independent pairs of homosexual brothers supports the existence of genes on pericentromeric chromosome 8 and chromosome Xq28 influencing development of male sexual orientation.

Defining and Measuring Sexual Orientation: A Review

  • R. Sell
  • Psychology
    Archives of sexual behavior
  • 1997
This paper reviews and critiques definitions and measures of sexual orientation that have been proposed and used by researchers over the past century to further the understanding of this subject and to encourage researchers to be critical of how they classify subjects based upon sexual orientation.

Homosexual Behavior in Female Mountain Gorillas: Reflection of Dominance, Affiliation, Reconciliation or Arousal?

This work presents data on homosexual behavior in female mountain gorillas in the Virunga Volcanoes (Rwanda) and test four functional hypotheses, namely reconciliation, affiliation, dominance expression and sexual arousal.