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  • MichelLouise [he/him]
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    4 years ago

    things evolved to take advantage of the habitats trees provide, then, yes those only occur if trees occur, ...

    This specific sentence is a very common, very wrong description of how evolution works and can lead to all kind of misconceptions.

    Life does not evolve to take advantage of things that exist, in ways it would not have evolved if these things did not exist. Life evolves randomly. Because of things that exist (including other living evolving stuff), some of these random evolutions will significantly increase chances of survival of those who have it. If you survive, you can reproduce, augmenting the chances that there will be mutants like you for another generation.

    « Useless », non particularly advantageous (nor disadvantageous) mutations occur all the time. Sometimes they disappear. But sometimes they survive. Life does not care.

    So we see a lot of mutations that take advantage of trees. It’s not because there was tree that they appeared. It’s because trees can provide a habitat and having a habitat increases your chances of survival by a fucking lot that things taking advantage of it disproportionately remain.

    • Owl [he/him]
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      4 years ago

      People generally use "evolve" to mean "randomly mutate and then thrive because they're selected for" not to mean "randomly mutate."

      • MichelLouise [he/him]
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        4 years ago

        Oh yeah I was not assuming that you did not understand that. I just felt compelled to make the precision because this kind of « semantic shortcut » (in French we call them « abus de langage », literally language abuse) always bothered me. Again it can lead to misconceptions so I wanted to make sure.

        Fuck, 4 Americans in 10 believe humans were created by God ~10’000 years ago.

        • Owl [he/him]
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          4 years ago

          Yeah, I'm familiar with the mistake you're talking about. But I'd wait until someone makes a faulty conclusion based on that mistake before correcting them, rather than judging by whether they jumped through the right semantic hoops.

          If someone has the wrong understanding, they'll make a mistake eventually.

    • Frank [he/him, he/him]
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      4 years ago

      Evolution is like water flowing down hill towards the sea. Water doesn't think or plan, but it always flows towards the sea.

      And the sea is crabs.