Human Ancestry

We got some of those National Geographic DNA kits, and were watching the video while preparing to swab.

They seem to have reconstructed a pretty good family tree for modern humans, with the San people of Africa at the root. About 50,000 years ago, some of them headed out and were next found in Australia, 10,000 km of Ocean and twice as far by land. No archeological trace of that journey remains, but a critical DNA marker of the population has been found in India, so it appears that some of their genes survive in today's India. Next, a couple of population groups moved out through the middle East into India and China. A third group moved through the middle East to Central Asia, where they still remain, though they were also the source of huge tertiary migrations ten thousand or so years later. They were the ancestors of the Europeans, the Native Americans, many Indians and Chinese, and the Asian Russians.

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