A lot of zoos say that they are trying to protect endangered species but this is not always the truth. Many zoos are built as public centers that generate a lot of money. If zoos are acting as charity to the animals then there is no need for people to pay lot of money to enter zoos. According to allcreatures.com (2015) some animals that grow very old or become ill are considered not attractive and some of them are taken to livestock auctions where they