This National Park, in addition to important landscapes, exuberant forests, and crystalline lakes, is inhabited by an eclectic array of animals specially developed for this landscape. The area has a considerable diversity of species. For climatic, as well as, biogeographic and evolutionary reasons there is less diversity than in the center and north of the country. The park is inhabited by approximately 200 species of vertebrates, including, 120 species of birds, 42 species of mammals, 13 amphibians, 12 reptiles, and 11 fish. Many of those found exclusively in the Patagonian Andes forest region.