I worked with an engineer who looked exactly like the Neanderthals you see in the recreations of what they looked like. His brow, His teeth, hair,even the way he walked. Put a spear in his hand & you would have thought you were transported back in time.
His favorite hobby was carving beautiful chess sets out of stone.
They intermarried I believe, hogswash they died out
The incidence of red hair is the same for Libyians as it is for the Irish.
I have also known few people who look like the Neanderthals :)