In the Xanth series by Piers Anthony, the Naga really are a race of human-headed serpents that may change among entirely human and serpent varieties, like any species and measurement of snake. ^ Kathiragesu Indrapala writes that "Inside the traditions preserved from the early Sri Lankan chronicles as well https://collinrdmwi.thezenweb.com/the-smart-trick-of-23naga-that-no-one-is-discussing-67619777