Koyama

You already know that Neanderthal genes were weeded out and what remains of him in us are immunity defense genes, skin changes and brain changes from neanderthal genes in the microcephlin region. The Neanderthal variant increases "growth factors" and size. A larger brain may result in greater intelligence,.. or higher rates of mental problems. The ghost population in Africans could have had a similar effect, or opposite. But doubtful that a 6%-8% introgression had no effect. I had no idea that every thought must be referenced. None of my comments are cutting edge or new. The original research studies have been cited 100's of times. Most of my comment can be found on WIKI. All I have done is taken in all information I find on the subject and come to a conclusion. Yes it is speculative. But to wait for 20 proofs puts your mindset way behind the curve. Your club does not want to hash my idea around? Could they not have fun ripping my theory apart? I wrote it for your entertainment,.. and challenge you to prove it wrong.

Woolly hair, straight hair, orange hair, white skin, black skin are all archaic elements that introgressed into Sapiens from hominids who lived on a much more extreme earth. Early Sapiens would have had a uniform skin tone as his new mutations became stable and fixed in his genome. Sapiens is too young of a species, and historically too low in numbers to have accumulated so many appearance changing mutations. Neanderthal altered the Europeans, Denisova and Neanderthal the Asians, and Erectus brought the black skin and woolly hair to the African. Possibly affected African brain growth factors as well.