The El Rincon Stream Frog
The El Rincon stream frog lives only on a remote plateau in the Argentinean Patagonia. It survives by remaining in thermal-heated springs to protect itself from the below-zero temperatures on the plateau. As is no surprise with an animal whose population occupies less than five square kilometers, the El Rincon is extremely rare. Sadly, however, the building of dams and the introduction of non-native species into their waters has greatly decreased the number of El Rincon to levels below even that of their usual numbers. Currently, it can only be found on a single plateau in Argentinian Patagonia.