The stories, first published in 1902, are pourquoi (French for "why") or origin stories, fantastic accounts of how various phenomena came about. A forerunner of these stories is Kipling's "How Fear Came," included in his The Second Jungle Book (1895). In it, Mowgli hears the story of how the tiger got his stripes.
The Just So Stories typically have the theme of a particular animal being modified ...