User blog comment:Xean/Featured Wikian:Ten Tailed Fox/@comment-1613840-20130212194150/@comment-166269-20130212204010

Most of the people on Wikia using it are probably referencing Naruto, which features nine (or ten, depending on how you count it) tailed beasts; the nine-tailed beast is a fox (and also indwells the titular character, Naruto).

However, the nine-tailed fox has appeared in several East Asian mythologies for centuries, and is the mythological basis for the nine-tailed fox in Naruto.