In the lower 48 states in the USA, the top three largest national parks are______.

Everglades National Park is the largest subtropical wilderness in the country. The park is home to several rare and endangered species.(14)It is also the third largest national park in the lower 48 states. after Death Valley and Yellowstone. Each year, more than one million people visit the Everglades.
    (15)In 1947, President Harry Truman spoke at the official opening of Everglades National Park. He said the goal of creating the park was to protect forever a wild area that could never be replaced. The Everglades is considered one of the great biological wonders of the world. The expansive wetlands stretch across more than 600, 000 hectares.(17)It is a place where plants and animals from the Caribbean Sea share an ecosystem with native North American species. Nine different environments exist within the Everglades. They include mangrove and cypress swamps, estuaries and coastal marshes.
    Unlike most other national parks, (16)Everglades National Park was created to protect an ecosystem from damage. The Everglades is home to about 15 species that federal officials say are threatened and endangered. They include the Florida panther, the American crocodile and the West Indian manatee. In addition, more than 350 bird species and 300 species of fresh and saltwater fish live within the park. The Everglades is also home to 40 species of mammals and 50 reptile species.