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Ancestral primacy of same-sex behaviour does not explain its stable prevalence in modern populations

Research output: Contribution to journalArticle

Thomas E. Dickins, Qazi Rahman

Original languageEnglish
JournalNature Ecology and Evolution
Early online date20 Apr 2020
Publication statusE-pub ahead of print - 20 Apr 2020

King's Authors


Monk et al. suggest that same sex behaviour (SSB) was present in ancestral populations alongside different sex behaviour (DSB). Such indiscriminate behaviour may not have impaired fitness under certain social and ecological circumstances, where sufficient levels of DSB enabled reproduction. The authors see this as a more parsimonious hypothesis compared to a traditional set, which sees current SSB as either a developmental error or conferring some indirect fitness benefits.

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