The first hint of an American Aborigine settlement of South America came from cave paintings in Brazil. The paintings, which predated the supposed date of settlement of the area, depict rituals never before seen in native American art. Somewhat later paintings from the same area depict war and violence, and then the paintings cease.
The rites shown in the paintings, involving elaborate costumes, are still performed by Australian Aborigines today. Similar rites existed in the traditions of the natives of Tierra del Fuego until the Fuegians ceased to exist as a people in the 20th century. The Fuegians are believed to be the product of intermarriage between American Aborigines and American Indians - the last surviving descendants of the Aboriginal settlers. Physiological evidence of Aborigines has also been found.