Since the airing of this series in 2009 remains have been found that reveal interbreeding between humans and neandertals.
The immigration map includes the Black Sea. This sea did not exist in its present form during the time of early human migration.It changed from being a lake to a sea during early historic times when erosion caused the Mediterranean to flood the region, which is most likely the origin of the various stories of the great flood. The bottom of the Black Sea is littered with the remains of ancient towns and villages, amazingly preserved by the nature of the water in that sea.