The wall crab spiders (family Selenopidae) are members of a group of families collectively called crab spiders because of their laterigrade (sideways-moving) legs. This family consists of about 175 species in four genera of which Selenops is the best known. The family is primarily tropical with the genus Anyphops confined to Sub-Saharan Africa and the genus Hovops confined to Madagascar. The spiders are very flat and are commonly found on walls or under rocks. 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