• Boozilla@lemmy.world
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    1 month ago

    So many poor “design choices” in human anatomy. (Note, I know there’s no intelligent design).

    The optic nerve. External testicles. Lack of decent fur. The way some nerves and blood vessels are routed make zero sense. An immune system that often wants to kill you. The list goes on. I’m sure a biologist or medical person could add plenty more. Many animals have some of these traits, too. If some trait or process is just barely good enough, nature will chug along with it for millions of years. Nature is all about some redneck engineering.

    • Carnelian@lemmy.world
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      1 month ago

      External* testicles are legit really cool though, they change their distance from your body to regulate temperature

      *they also can and will retract all the way inside your body if it’s cold enough