• angrystego@lemmy.worldEnglish
    12·
    2 个月前

    So is there some research showing it’s caused by damage? That should be easy to confirm, right?

    • pyre@lemmy.worldEnglish
      1·
      2 个月前

      apparently not, as it remains uncertain. there are hypotheses though, one of which is referred to in this meme: winds cause collisions which cause abrasions and damage, which result in crown shyness.