Within the Xanth series by Piers Anthony, the Naga absolutely are a race of human-headed serpents which can completely transform amongst completely human and serpent kinds, which includes any species and size of snake. s are Shesha (or Ananta), who in the Hindu myth of generation supports Narayana (Vishnu) https://cesarxkvgr.blognody.com/28586325/everything-about-23naga