 The ecosystem's fauna includes anteaters, jaguars, cougars, deer, 8 species of monkeys, 500 species of birds including the gray-legged tinamou, 1,200 species of insects and 100 species of reptiles.The La Macarena National and Ecological Reserve Park is internationally known for the Caño Cristales, known by people who has visited it as one of the most beautiful rivers in the world.The park also contains petroglyphs from ancient cultures (Angosturas I and II petroglyphs in the Guayabero River).