Answer the following question: Richardson's ground squirrel (Urocitellus richardsonii) or the flickertail is a North American ground squirrel in the genus Urocitellus. Like a number of other ground squirrels they are sometimes called Dak Rats or gophers though this name belongs more strictly to the pocket gophers of family Geomyidae. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Answer:
Animal