And hath made of one blood all nations of men for to dwell on all the face of the earth... Acts 17:26
"Research based on mtDNA and DNA has demolished the so-called 
caveman
view of Neanderthals by proving they interbred with modern humans, and
thus were not a separate species as depicted in the textbooks and
evolutionary literature for the last century.
This is yet another case
where good empirical research had demolished a core idea based on
evolution.
Neanderthals were not a missing link leading up to modern
humans, but another people group that could, and did, intermarry with
other people groups – including those now called “modern humans.” CEH