 Many of Reynard's adventures may stem from actual observations on fox behaviour; he is an enemy of the wolf and has a fondness for blackberries and grapes.Chinese folk tales tell of fox-spirits called "huli jing" that may have up to nine tails, or "kumiho" as they are known in Korea.In Japanese mythology, the kitsune are fox-like spirits possessing magical abilities that increase with their age and wisdom.