Within the Xanth series by Piers Anthony, the Naga certainly are a race of human-headed serpents that could completely transform in between entirely human and serpent varieties, like any species and size of snake. s are Shesha (or Ananta), who during the Hindu myth of development supports Narayana (Vishnu) https://casper7788776.onzeblog.com/28888595/new-step-by-step-map-for-23naga