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Young People Are Gayer Than Ever, New Study Says (www.vice.com)
submitted 2 years ago by [M] to c/gaybros@lemmy.world
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[–] 3 points 2 years ago (1 child)

We likely will never know the "actual" numbers because it's a moving target.

Homosexuality is thought to be linked to higher fecundity of all the female relatives. As birth rates decline, a slightly higher fecundity will drive an increase in observed homosexuality/bisexuality as a percentage of the population.

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  • [–] [S] 2 points 2 years ago* (1 child)

    Homosexuality is thought to be linked to higher fecundity of all the female relatives.

    Do you have any source for this? I have never heard about this before..

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  • [–] 2 points 2 years ago

    From a population genetics standpoint, the amount of homosexuality around is a puzzle. Because homosexual individuals have negative fitness (aka they don't make many babies), they should be very rare if it's genetically linked. There has to be a counter-benefit to the genetic family to maintain them in the population.

    Why it's important: If there is no counter-benefit, then homosexuality logically has no significant genetic component. It's all environmentally influenced.

    Original study proposing the concept in for homosexual mens families.

    https://royalsocietypublishing.org/doi/abs/10.1098/rspb.2004.2872

    A few more recent ones discussing it.

    https://link.springer.com/article/10.1007/s12110-017-9309-8

    https://link.springer.com/article/10.1007/s10508-007-9191-2

    https://www.sciencedirect.com/science/article/abs/pii/S1090513808000688

    And the ladies.

    https://link.springer.com/article/10.1007/s12110-017-9309-8

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