The people who today have the most diverse genetic structure
in the world are the !Kung. Because of this finding, it is hypothesized that
the !Kung are the descendants of the people who stayed in Africa and colonized
the continent and, eventually, the rest of the world. Not only can we assume
the !Kung are a relative to our ancestors by DNA, but we can also hypothesize
this by their language. The Khoesan, Hadza, Sak, Sandawe and Pygmy have a
language that is similar to the !Kung which includes a variety of
“click-speaking”. The previously listed peoples all related with shared ancestors
35,000 years ago.
There are 4 theories of human population:
1) Isolation by distance:http://archaeology.about.com/od/earlymansites/ss/isolation.htm
2) Out of Africa: http://archaeology.about.com/od/oterms/g/outofafrica.htm
3) Multiregional Hypothesis: http://archaeology.about.com/cs/glossary/g/multiregional.htm
4) Southern Dispersal Rout: http://archaeology.about.com/od/sterms/qt/southern_disper.htm