• @catloaf@lemm.ee
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    831 year ago

    I’m surprised that mammals evolved to not regrow teeth. You’d think it would be a significant advantage.

    • @MumboJumbo@lemmy.world
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      411 year ago

      I wouldn’t imagine it’d play a role in reproducing though. It may help ones ability to live longer, but they have probably procreated long before tooth loss has become a major issue of well being or mortality.

      • @Swedneck@discuss.tchncs.de
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        21 year ago

        can we maybe not propagate misinformation? it was perfectly normal for hunter-gatherers to reach at least 50 years old, and if you think about it for a bit it makes sense that the age where we start to fall apart is about the oldest that people got to in the past, which is around 50-60 yrs.

        the average lifespan in the past was something like 35, but that’s because tons of people died early on, which remained true up until the invention of modern medicine which was like 100 years ago and doesn’t really have anything to do with your diet.

    • @bloodfart@lemmy.ml
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      81 year ago

      There didn’t used to be multivitamins. The broad spectrum of hominid diets never guaranteed you’d get enough trace minerals and elements to keep growing more teeth and there wasn’t evolutionary pressure to do so when you’re like five to ten years into your adult teeth when puberty hits.

    • Random Dent
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      71 year ago

      Or at least space them out a bit. You get one set for the first 5-10 years, and then the second set has to last you the remaining 60-70.

      Getting a new set at like 35-40 seems like a more sensible system to me.

    • @Pretzilla@lemmy.world
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      41 year ago

      It’s our modern diet of refined sugar and plenty more that harms teeth

      It’s somewhat within our control to do something about it

    • @acosmichippo@lemmy.world
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      21 year ago

      The redundancy is already there since we have 32 teeth to begin with. If you lose one or two it’s not really a big deal.

      And there’s a fine line between helpful regrowth and cancer. the more regrowth there is, the more likelihood there is of cancer.