
The relatives of gay individuals do not have more offspring. The old evolutionary enigma unresolved?
Published: Monday 17.3.2025
Homosexuality presents an intriguing paradox for evolutionary biology. If homosexual individuals, on average, have fewer offspring than heterosexual people, and sexual orientation is at least partly genetically determined, how can genetic predispositions for homosexuality persist in the human population? A recent study by Jakub Fořt and his colleagues from the Human Ethology group at the Faculty of Science, Charles University, aimed to answer this question.