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  1. 1.

    Monk, J. D., Giglio, E., Kamath, A., Lambert, M. R. & McDonough, C. E. Nat. Ecol. Evol. 3, 1622–1631 (2019).

    PubMed  PubMed Central  Google Scholar 

  2. 2.

    Dickins, T. E. & Rahman, Q. Ancestral primacy of same-sex sexual behaviour does not explain its stable prevalence in modern populations Nat. Ecol. Evol. https://doi.org/10.1038/s41559-020-1187-5 (2020).

  3. 3.

    Clive, J., Flintham, E. & Savolainen, V. Understanding same-sex sexual behaviour requires thorough testing rather than reinvention of theory Nat. Ecol. Evol. https://doi.org/10.1038/s41559-020-1189-3 (2020).

  4. 4.

    Gowaty, P. A. Sexual terms in sociobiology: emotionally evocative and, paradoxically, jargon. Anim. Behav. 30, 630–631 (1982).

    Google Scholar 

  5. 5.

    Vasey, P. L. Homosexual behavior in primates: a review of evidence and theory. Int. J. Primatol. 16, 173–204 (1995).

    Google Scholar 

  6. 6.

    Dixson, A. in Animal Homosexuality: A Biosocial Perspective (ed. Poiani, A.) 381–400 (Cambridge Univ. Press, 2010).

  7. 7.

    MacFarlane, G. R., Blomberg, S. P. & Vasey, P. L. Homosexual behaviour in birds: frequency of expression is related to parental care disparity between the sexes. Anim. Behav. 80, 375–390 (2010).

    Google Scholar 

  8. 8.

    Parker, G. A. The sexual cascade and the rise of pre-ejaculatory (Darwinian) sexual selection, sex roles, and sexual conflict. Cold Spring Harb. Perspect. Biol. 6, a017509–a017509 (2014).

    PubMed  PubMed Central  Google Scholar 

  9. 9.

    Bailey, N. W. & Zuk, M. Same-sex sexual behavior and evolution. Trends Ecol. Evol. 24, 439–446 (2009).

    PubMed  Google Scholar 

  10. 10.

    Scharf, I. & Martin, O. Y. Same-sex sexual behavior in insects and arachnids: prevalence, causes, and consequences. Behav. Ecol. Sociobiol. 67, 1719–1730 (2013).

    Google Scholar 

  11. 11.

    Han, C. S. & Brooks, R. C. Same-sex sexual behaviour as a by-product of reproductive strategy under male–male scramble competition. Anim. Behav. 108, 193–197 (2015).

    Google Scholar 

  12. 12.

    Hoskins, J. L., Ritchie, M. G. & Bailey, N. W. A test of genetic models for the evolutionary maintenance of same-sex sexual behaviour. Proc. Biol. Sci. 282, 20150429 (2015).

    PubMed  PubMed Central  Google Scholar 

  13. 13.

    Hoving, H.-J. T., Fernández-Álvarez, F. Á., Portner, E. J. & Gilly, W. F. Same-sex sexual behaviour in an oceanic ommastrephid squid, Dosidicus gigas (Humboldt squid). Mar. Biol. 166, 33 (2019).

    Google Scholar 

  14. 14.

    Engel, K. C., Männer, L., Ayasse, M. & Steiger, S. Acceptance threshold theory can explain occurrence of homosexual behaviour. Biol. Lett. 11, 20140603 (2015).

    PubMed  PubMed Central  Google Scholar 

  15. 15.

    Gavrilets, S. & Rice, W. R. Genetic models of homosexuality: generating testable predictions. Proc. R. Soc. B 273, 3031–3038 (2006).

    Google Scholar 

  16. 16.

    Futuyma, D. J. Evolutionary constraint and ecological consequences. Evolution 64, 1865–1884 (2010).

    PubMed  Google Scholar 

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A.K., C.E.M., J.D.M., M.R.L. and E.G. conceived of and developed the ideas in this manuscript. All authors wrote and revised the manuscript.

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Correspondence to Julia D. Monk.

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Kamath, A., McDonough, C.E., Monk, J.D. et al. A. Kamath et al. reply. Nat Ecol Evol 4, 786–787 (2020). https://doi.org/10.1038/s41559-020-1188-4

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