This wonderful, and inspiring Classic Animal Stories is a gem. The Animal Stories in this collection are classics because they have been told and retold by successive generations, some for over two thousand years, others for only a century.
Books can be attributed to "Unknown" when the author or editor (as applicable) is not known and cannot be discovered. If at all possible, list at least one actual author or editor for a book instead of using "Unknown".
Books whose authorship is purposefully withheld should be attributed instead to Anonymous.
Fun, especially the illustrations. Some were actually new to me, or were variations, for example "The Sparrows' Tug-of-War" I know from a picturebook set in Brazil (West Africa is the source tag here). The art is charming, looks to me very much like that of Michael Hague. Includes glossary and an 'acknowledgements' page that could serve as bibliography for further reading.