• crt0o@lemm.ee
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    13 hours ago

    The idea itself isn’t wrong, the fittest individuals (those who have the most offspring) are always those whose genetic material will be best represented in the next generations. Kin Selection Theory just includes the fact that even selfish and thus fitter individuals which are helped by altruistic ones usually carry some altruistic genes which they propagate.

    • exasperation@lemm.ee
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      13 hours ago

      even selfish and thus fitter individuals which are helped by altruistic ones usually carry some altruistic genes which they propagate.

      It’s more useful to model the genes as selfish, not the individuals. A queen bee/ant won’t survive long enough to produce fertile offspring if her infertile offspring, each a genetic dead end, doesn’t provide for the hive/colony. That genetic programming isn’t altruistic because it doesn’t help rival colonies/hives, only their own.

      So no, the individuals aren’t free riding on others’ altruism. It’s more that genetic coding for social groups is advantageous to the gene, even if localized applications of those rules might seem disadvantageous to the individual in certain instances.

    • UnderpantsWeevil@lemmy.world
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      13 hours ago

      But then you introduce parasitic organisms, which prey on the more selfless and mutualist functions of complex species. And you end up with a cyclical rise and fall of survival strategies.

      Predator organisms proliferating in periods of organic wealth and collapsing when they’ve depleted the reserves.

      Meanwhile, prey organisms trade their mutualist reproductive impulses for traits that are defensive and alienating from their kin… until the predator collapse, at which point they can open up again.

      Optional survival varies with the historical movement, which is driven by the strategies that preceded that moment.

      Fitness isn’t a solved problem, it is a constantly moving target.

      • crt0o@lemm.ee
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        12 hours ago

        Fitness can be seen as a phenotype trait, i.e. the kind of phenotype that will produce the most offspring. Of course that is dependent on the environment, but it is worth noting that the kind of adaptation you mentioned can also happen epigenetically or by other means. Basically organisms can have some adpatability built into their genotype.

        • UnderpantsWeevil@lemmy.world
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          12 hours ago

          the kind of phenotype that will produce the most offspring

          That’s only beneficial when your children are an asset to community survival. Predators tend to produce fewer offspring, because every new member of the predator cohort is an eventual rival. Prey species benefit from large populations when the populations’ role is to terraform territory or otherwise synergize with their kin. This is a big fundamental difference between animal and plant reproduction, since plants generally benefit from more members of the species in the immediate area while animals have a soft ceiling on their population tied to how much food / shelter is available.

          One could argue that the human habit of terraforming and the synergy enjoyed by a large population of active brains in a small area puts us more in line with plant species than animals.

          The Survival of the Fittest trope is flawed on a whole host of levels. The idea that you want a small number of apex predators as a survival mechanic neglects all the instances in which a very large number of prey species perform significantly better.

      • crt0o@lemm.ee
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        13 hours ago

        People don’t understand that fitness is related purely to the number of viable offspring, which isn’t a useful indicator of a person’s virtue. Anyways Social Darwinism is idiotic and a wonderful example of the appeal to nature fallacy. We’ve surpassed evolution for fuck’s sake, if we want to progress as a society we need to educate people.

        • UnderpantsWeevil@lemmy.world
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          12 hours ago

          We’ve surpassed evolution for fuck’s sake

          We’ve become self-aware, but the evolutionary impulses persist. Ecological pressures don’t vanish because you begin to understand them. We can adapt rapidly - even within one or two generations - to enormous changes in the ecology. But these are still responses and they still exert evolutionary pressure on the population.

          Nevermind that most people still don’t actually understand evolution in a manner that benefits them individually. The idea is only useful at the social level, via community-spanning collective actions and policies.

    • Smoogs@lemmy.world
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      13 hours ago

      Fit and reproducing a lot isn’t mutually exclusive tho. Just look at Elon. Do you think he could hunt a deer with just his hands? I doubt he could even put up a shelf.

      • crt0o@lemm.ee
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        13 hours ago

        In evolutionary biology, fitness is defined as reproductive success, aka the number of viable, reproducing offspring