Please answer the following question: Melanochromis xanthodigma is a species of cichlid endemic to Lake Malawi near Masinje where it prefers living in caves and crevices. This species can grow to a length of 8.3 centimetres (3.3 in) SL. 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