#quietpartoutloud

    • Riven@lemmy.dbzer0.com
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      3 hours ago

      It’s a thing that’s being studied but apparently it’s also true for reindeer which turn their eyes blue during the winter to help them see better in low light conditions and brown in the summer when there’s better lighting.

      • peopleproblems@lemmy.world
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        2 hours ago

        Ha, man, I thought I was crazy, I had no idea. My ancestry was largely from northern Europe - but my Dad did a lot of astronomy and typically had me find things for him when we were out in the field. He always said “because you see things better than me” which I thought was absolute horseshit because I’m near sighted and he’s farsighted.

        Maybe I did because my blue eyes actually helped a bit.

      • Zozano@lemy.lol
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        1 hour ago

        Its basically also why people closer to the equator have darker skin.

        • Too much sun = skin cancer
        • Too little sun = vitamin D deficiency
        • Too little melanin = skin cancer prone skin
        • Too much melanin = needs vitamin D supplements in the Arctic winter.