What specialized method must the strictly pelagic Yellow-bellied Sea Snake use for shedding its skin?

Answer

Employing a unique knotting and twisting behavior

Because it cannot rub against abrasive surfaces, the Yellow-bellied Sea Snake employs a behavior involving knotting and twisting over several hours to loosen and remove its old skin.

What specialized method must the strictly pelagic Yellow-bellied Sea Snake use for shedding its skin?
seaanimalclassificationreptilesnake