Q:The Cuatro Cienegas softshell (Apalone spinifera atra) also called the black spiny softshell is a subspecies of softshell turtle in the Trionychidae family. It was formerly classified in the genus Trionyx. 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?
A:
Animal