When the Out Of Africa Tribe made its way into Sundaland they found the Ngandong Hominins (Solo Men) already in residence.
https://en.wikipedia.org/wiki/Solo_ManDefinition: The Ngandong hominin skulls are eleven skull caps, remains of human ancestors found in 1931 near the Solo River in Java, Indonesia. They are a part of the human ancestry puzzle because the morphology of the skulls appears to fit both Homo erectus or an archaic form of Homo sapiens.
Dating the Ngandong HomininsThe first dates on the skulls put them at 100,000 years before the present, while Homo sapiens aren't known in this part of the world until about 40,000 years ago and Homo erectus is thought to have died out well before 100,000 years ago. Some researchers believe the skulls represent a small colony of Homo erectus that survived long after the rest had died off. Recent dates seem to suggest that the skulls are actually between 27,000 and 50,000 years old, which would definitely fit the timing of archaic Homo sapiens more comfortably. However, these dates were taken on faunal remains that other researchers believe are not the same age as the hominins.
SourcesBartstra, Gert-Jan, Santosa Soegondho, and Albert van der Wijk. 1988. Ngandong man: age and artifacts. Journal of Human Evolution 17:325-337Grün, Rainer and Alan Thorne. 1997. Dating the Ngandong Humans. Science 276 (5318):1575-1576. (free download)Swisher III, C. C. et al. 1997. Latest Homo erectus of Java: Potential Contemporaneity with Homo sapiens in Southeast Asia. Science 274(5294):1870-1874. (free download)This glossary entry is part of the Dictionary of Archaeology.Also Known As: Solo man http://archaeology.about.com/od/nterms/g/ngandong.htm
The line of descent was thought to go like this, and this descent seems to be partly true, for a section of the population:
And the Solo skullcaps represent defeated enenmies. Their heads were removed, skulls scraped clean. and the skullcaps stuck up on stakes driven into the ground as a warning. Some accounts say their shinbones were used as the stakes.This was between 100,000 and 50,000 years ago and more likely after the Toba explosion. Both the Solo men and their slayers wre unusually advanced: if their slayers may be presumed to be Wadjak men, they were already Mesolithic, and counted as a step in advance frim the rest of the world (Comparable to the Hoa Binh people in Vietnam) The reason the Solo people were thought to be very recent is because some of the weapons associated with them were considered very advanced: among the weapons were some bone harpoon heads. Now we can say definitely that these were early in Africa and that the Africans were most likely using them against the Solo people. The Solo skullcaps are about evenly divided betweenb adult males and females, with one younger male, probably a teenager. They had all been cannibalized.
This grim picture including headhunting and cannibalism of the fallen foes seems to tell us directly how the Out of Africa tribe conquered Sundaland for their own in the aftermath of the Toba volcanic eruption. Since there is a pretty good chance the genetic line of the Solo peoples continued (in the mtDNA evidence), it seems that some of the females were captured for interbreeding with their (male) conquerors.This would be more of a political statement than because of any sexual attraction.
More modern head hunter continues the tradition started by the early Out of Africa warrior elite.