We're The Only Ones With Chins - And We Don't Know Why
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Check out the first episode of Human: https://to.pbs.org/HumanNOVAYou share a trait with every single human who's ever lived – but no other animal on Earth h...
  • Hemingways_Shotgun@lemmy.caEnglish
    1·
    3 days ago

    It’s really because as soon as we evolved the ability to think abstract thoughts, we needed something to stroke knowingly while ruminating. Obviously.

  • Lvxferre [he/him]@mander.xyzEnglish
    6·
    24 days ago

    My guess is that it has to do with language. More specifically, it helps higher pitched sounds to resonate louder and more distinctively from other sounds. Plus some sexual selection.

    • showmeyourkizinti@startrek.websiteEnglish
      3·
      24 days ago

      When these thing pop up for some reason my default is assume sexual selection. Chins? sexual selection. Breasts, sexual selection. A sense of humor? Believe it or not sexual selection.

      • Lvxferre [he/him]@mander.xyzEnglish
        2·
        23 days ago

        Pretty much, but what is being selected for is also interesting. Perhaps it isn’t the chin itself, but the resonance and its effect on our voices.

        It’s just my guess, mind you.