 Further credibility is lent to this idea by research suggesting the existence of an ethnically distinct population elsewhere in South America.According to archaeologist Ricardo E. Latcham the sea-faring nomads of Patagonia (Chonos, Kawésqar, Yaghan) may be remants from more widespread indigenous groups that were pushed south by "successive invasions" from more northern tribes.The name "Tierra del Fuego" may refer to the fact that both Selk'nam and Yamana had their fires burn in front of their huts (or in the hut).