These strategically placed threads form a bundle called the byssus, which tethers the mussel to its new home in much the same way that guy ropes hold down a tent.
Need strateegiliselt asetatud niidid moodustavad kimbu, mida kutsutakse büssuseks, mis kinnitab karbi oma uue kodu külge umbes nii, nagu telginöörid hoiavad telki maa küljes.