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General_Effort@lemmy.world to science@lemmy.worldEnglish · 2 days ago

Teeth first evolved as sensory tissue in the armored exoskeletons of ancient fish, fossil scans find

phys.org

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Teeth first evolved as sensory tissue in the armored exoskeletons of ancient fish, fossil scans find

phys.org

General_Effort@lemmy.world to science@lemmy.worldEnglish · 2 days ago
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Anyone who has ever squirmed through a dental cleaning can tell you how sensitive teeth can be. This sensitivity gives important feedback about temperature, pressure—and yes, pain—as we bite and chew our food. However, the sensitive parts inside the hard enamel first evolved for something quite different.

WHAT?!

Original paper: https://www.nature.com/articles/s41586-025-08944-w

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  • SynopsisTantilize@lemm.ee
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    59 minutes ago

    Imagine. You’re a fish just swimming around. You have skin that senses like a humans teeth can sense…a larger creature comes and crunches you and your teeth skin with their gigantic boned armoured jaw.

    And then remember the last time novacaine didn’t work when someone was drilling your teeth.

  • i_love_FFT@jlai.lu
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    1 day ago

    That explains narwhals 🦄

  • Valmond@lemmy.world
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    2 days ago

    So that’s why they are so freaking sensitive!

  • go $fsck yourself@lemmy.world
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    1 day ago

    I wonder if this was how sharks got their skin teeth

  • Olgratin_Magmatoe@slrpnk.net
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    2 days ago

    New teeth horror just dropped.

  • systemglitch@lemmy.world
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    1 day ago

    Makes logical sense, I like it!

    • General_Effort@lemmy.worldOP
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      1 day ago

      It does?

      • Mothra@mander.xyz
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        21 hours ago

        It does to me, I read the headline and immediately agreed with it

        • General_Effort@lemmy.worldOP
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          20 hours ago

          Hmm. Something about it feels just wrong to me. I’m fairly sure, though, that it’s a gut feeling and nothing logical. Because teeth on the outside? Because sensory organs in teeth? IDK.

  • SubArcticTundra@lemmy.ml
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    2 days ago

    Stuff evolves from the most unexpected stuff

  • AmidFuror@fedia.io
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    2 days ago

    Teeth first evolved as sensory tissue in the armored exoskeletons of ancient fish, fossil scans find.

    • Ben Hur Horse Race@lemm.ee
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      1 day ago

      thats right

      • Secret Music@lemmy.blahaj.zone
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        1 day ago

        Why do people do this? Not the first time I’ve seen someone comment the title of the post and nothing else. On Reddit, that would’ve been a sure sign that it was a GPT bot because that’s the kind of thing those bots do occasionally when they slip up.

        • General_Effort@lemmy.worldOP
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          1 day ago

          I think it’s a reply to my incredulous “what?!”

          • Secret Music@lemmy.blahaj.zone
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            1 day ago

            Oooh, that actually makes sense lol. Guess I’m just slow.

            • General_Effort@lemmy.worldOP
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              1 day ago

              Ehh. It took me a while, too, and I wrote it. Seriously though. What kind of sick evolutionary history is that? This is worse than the whole swim bladder thing. At least that doesn’t make me uncomfortable.

              • lars@lemmy.sdf.org
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                2 hours ago

                swim bladder

                I beg your pardon

        • Ben Hur Horse Race@lemm.ee
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          1 day ago

          its probably only a matter of time before that scourge arrives in our little internet hovel. most likely already happening.

      • AmidFuror@fedia.io
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        1 day ago

        What?

        • Klear@sh.itjust.works
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          1 day ago

          Teeth first evolved as sensory tissue in the armored exoskeletons of ancient fish, fossil scans find.

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