All four species and several subspecies of hyrax are kept in european zoos. I know this because of Zootierliste. But I do not know how common they are in zoos on other continents. Do many zoos in America, Africa and The Middle East keep hyraxes? I want to know more about their natural history, their history in zoos and why they are so rare in captivity. Last I want to learn more about how they are related to other animals. I know they are related to elephants and manatees, but what evidence support this? and why are they so different and not related to other similar looking animals?