Gobiomorphus cotidianus the common bully is a species of sleeper goby endemic to New Zealand. Being amphidromous they can be found in marine fresh and brackish waters. This species can reach a length of 15 centimetres (5.9 in) TL. 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