Well, we already had an idea of how interconnected we are. But I found this very interesting video from PBS showing how DNA is used to trace human migrations. It seems we humans don’t like to stay put for very long, and we have intermarried with other populations repeatedly. The bottom line is that no population is “racially pure.” The video is only about 6.5 minutes long, This ancient DNA revolution is unlocking just how interconnected we are
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