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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

  • Ben Hur Horse Race@lemm.ee
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    2 days 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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              3 hours ago

              swim bladder

              I beg your pardon

              • General_Effort@lemmy.worldOP
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                7 minutes ago

                Swim bladders evolved from lungs. You wouldn’t think that something that makes the fishies better ocean divers originally evolved to let them breathe air.

      • 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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