The cold and dry climate of the Austral Patagonia, was not always so harsh. According to paleo-environmental studies, this same territory was warmer and more humid during a long period of time (between 6,000 and 1,000 BC).
Since 3,000 B.C., the climate is supposed to have begun to change, becoming less warm and humid and more cold and dry, until reaching the present conditions.
Guanacos, red foxes, cururos and a great diversity of birds, are only a part the native fauna found in the territory.
Fueguino hunters took advantage of the roots, diverse fungi and wild fruits provided by the forest and the steppe.