• Tudsamfa@lemmy.world
    link
    fedilink
    English
    arrow-up
    7
    arrow-down
    1
    ·
    5 个月前

    I’d be cautious with saying evolutionary advantage here.

    I don’t believe the “Gay Uncle hypothesis” any more than the somewhat debunked “Grandmother Hypothesis”, which aimed to explain menopause with biological altruism. Just because we could think of a way in that it might be advantageous for a species doesn’t mean it’s advantageous for an individuals fitness.

    Of course, it can be still an advantage, but we’d only know with more free, uncensored research.

    • Snowclone@lemmy.world
      link
      fedilink
      English
      arrow-up
      1
      ·
      5 个月前

      Does evolutionary pressure only exist on individuals? I’ve never heard that. There’s a wide variety of species that are highly socially organized, do you not accept that that’s through evolutionarily pressure?

      • Tudsamfa@lemmy.world
        link
        fedilink
        English
        arrow-up
        1
        ·
        5 个月前

        I never said that. What I meant is that a behaviour, which benefits a species as a whole but reduces one individual’s fitness, is not evolutionary competitive. It’s evolutionary game theory, like the prisoners dilemma from normal game theory.

        And to determine if some behaviour is such a dilemma, you have to consider costs and benefits of it, which is not at all clear in natural situations. That’s why I said it needs to be studied.

        But I must concede, I sort of assumed what exactly you called an evolutionary advantage. Common homosexuality in penguins or not discriminating against homosexual individuals in penguins have very different analysis here.