Please answer the following question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Ayu - The ayu ( ) or sweetfish Plecoglossus altivelis is an amphidromous fish the only species in the genus Plecoglossus and family Plecoglossidae. It is a relative of the smelts and is placed in the order Osmeriformes. Native to the Palearctic ecozone it occurs in rivers lakes and coastal waters of western Hokkaido in Japan southward to the Korean Peninsula China Taiwan and Hong Kong.The name sweetfish is due to the sweetness of its flesh.
Answer:
Animal