西行阿里Phoenix Zoo, also known as Phoenix Zoo, is the largest nonprofit zoo in the United States, founded by Robert Mattel in 1962. Zoo covers 0.51 square kilometers and more than 1,300 animals live in it. The zoo is divided into four main areas: Arizona, Africa, the Tropical and the Children's. The other area is the Stinley Bay area, which has a tank showing stingrays. Visitors can take a car to view animals in the park or walk up to them on a 4-kilometer hiking trail.