• naught101@lemmy.world
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    2 天前

    It’s survival of the genetic line that reproduces enough to stay alive. The weird shit is often related to path dependence, or is just not enough of a detriment to affect evolutionary outcomes.

    • Tar_Alcaran@sh.itjust.works
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      5 小时前

      If a pair of animals (humans included) can raise >2.1 offspring that have >2.1 offspring themselves, that’s potentially a functioning species. Now, humans tend not to like this minimum requirement because we frown on dying as grandparents at age 30, but it works fine from a species point of view. That’s why the answer to “But how does [animal] deal with [common issue] in the wild” is usually “it dies”

    • merc@sh.itjust.works
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      12
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      2 天前

      Horses must have plenty of good evolutionary traits, because even without human breeding they’re very successful creatures. I guess they don’t reproduce quickly, so that isn’t it. I guess they can’t shrug off injuries. They must be really good at not getting caught by predators, so they live enough to have at least a couple of foals.

      • naught101@lemmy.world
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        17
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        2 天前

        I mean, I think they also evolved on steppes and open plains, where running fast is not too often super dangerous, so breaking a leg is not common enough to counter balance the advantages of being fast.