[TodeImmabbedo]

The Yaghans would have had to wear clothes in the Antarctic:

It's fantastic that they never wore clothes, it can get pretty damned cold in Tierra del Fuego.

---------- Post added 2012-01-04 at 04:24 ----------

Instead of clothes, the Yamana rubbed themselves in fish and seal oil. This did give some protection but also made their personal smell something of an acquired taste for outsiders.The oil also covered one of the world's most astonishing human adaptations. An average citizen of the world today - however heavily smeared all over with fish oil - would survive only briefly in a Fuegian Winter and would have serious problems even at the height of southern Summer. The Yamana did not only survive, stark naked most of the time, but they thrived. There is only one explanation for this remarkable aptitude: they must have lived in the area for sugh a long time (mopre than ten thousand years) that they had time to develop a genetic adaption to cold. To do so needsss time and the Yamana must have been under severe evolutionary pressure. Why they did not go the quicker and simpler way of using animal skins like the Ona we shall probably never know. The Fuegian's is the only such adaptiation known among Homo sapiens.. Neanderthal man (who thrived in the Eurasian ice age) may have developed a similar genetic method to trick their even nastier climate. Link with more information and pictures!:
http://www.andaman.org/BOOK/chapter5...ext-Yamana.htm