• ZombiFrancis@sh.itjust.works
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    7 hours ago

    Tl:dr = Because they haven’t. Yet. Maybe. As far as we know.

    I think you’ve described it quite well. That’s just evolutionary biology. Any adaptation requires some kind of pressure behind it.

    • WildPalmTree@lemmy.world
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      33 minutes ago

      Not pressure, just absence of negative effects. Pressure might help but is not required. And I use “absence” quite loosey-goosey.

      • ZombiFrancis@sh.itjust.works
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        8 minutes ago

        Yes, and ‘pressure’ is used similarly. Think atmospheric pressure. It can lower and heighten, so a lack of pressure is low pressure, not the absence of it.