Peru is a highly diverse country split into three geographic regions - the coast, jungle, and highlands - and is home to a wide range of biodiversity. Although the Amazon is famous for being an ecological hot spot for amphibian species, Denver Zoo is working to save critically endangered species in two aquatic ecosystems of the high Andes. Located on the border of Bolivia and Peru is Lake Titicaca, the highest navigable lake in the world sitting at 12,500 ft. above sea level, and home to Lake Titicaca frogs. A few hundred miles away, at 13,500 ft. above sea level, is Lake Junin, the largest lake entirely within Peru. Lake Junin is home to two species of endangered frogs and several endemic bird species.