One documentary I saw was QUITE interesting.
They tested the students in the class for the percentage of Neanderthal DNA.
What blew my mind: the three seriously HOT women, I mean smoking hot blonds and a dark redhead, had far and away the highest percentage.
I mean WTF?
Frankly, that makes perfect sense. It is now believed that Neanderthal may have had pale skin, and frequently blue eyes and red or blond hair. During the Ice Ages this would have enabled them to live in the far north and still absorb enough Vitamin D from the sun on their skin to grow pelvic bones that were wide enough to allow young to be born. There was a recent article about a finding of a British man 10,000 years old who appeared to have dark skin. However, he lived in Cornwall which nowhere is more than 20 miles from the sea. Whole small fish are a perfect source of Vitamin D. Modern humans living far from the sea were more likely to bear live young if their females were fair and light skinned with broad hips. Thus all the fuss about blond, blue-eyed, full hipped sexy women.
How high were the percentages? My late husband had a number of what I suspect were Neanderthal traits, and I suspect he was more than 4%. One day I will have myself and 2 sons tested and see if we can approximate his percentage.