Short fictional story that anthropomorphises non-humans to illustrate a moral lesson
Fable is a literary genre defined as a succinct fictional story, in prose or verse, that features animals, legendary creatures, plants, inanimate objects, or forces of nature that are anthropomorphized, and that illustrates or leads to a particular moral lesson (a "moral"), which may at the end be added explicitly as a concise maxim or saying. A fable differs from a parable in that the latter excludes animals, plants, inanimate objects, and forces of nature as actors that assume speech or other powers of humankind.
https://en.wikipedia.org/wiki/Fable