• FlexibleToast@lemmy.world
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    3 days ago

    Sometimes it’s not the thing that gives an advantage, but the thing it’s connected to. Perhaps the same same gene that gives them a micropenis also makes them really fit in some other area. It’s unlikely, but possible that the genetic mutation makes them immune to some devastating disease in the future. Genetics are complex.

    • Remember_the_tooth@lemmy.world
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      1 day ago

      Sickle cell anemia is kinda like that. Carriers with one copy of the gene get resistance to malaria compared to those without it. People with two copies get the disease and are more vulnerable to Malaria than those without a copy.