Lago Puelo National Park has the distinction of being in a transition zone between the Andean Patagonian forest and Valdivian jungle. For that reason is like a genetic lab where you can find unique specimens, as the case of plants of an ecosystem that present mutations to adapt to another. Findings have also been made in what regards to the fauna and there are several researchs conducting currently and from different countries. One was in 1999 when an amphibian specimen was discovered, unique in the world, a frog called Eupsophus emiliopugini.
