One Shan

I was reading the latest edition of Scientific America recently and came across this excerpt in a article about human hairless evolution called the Naked Truth by Nina Jablonski

“….Tightly curled hair provides the optimum head covering in this regard, because it increases the thickness of the space between the surface of the hair and the scalp, allowing air to blow through. Much remains to be discovered about the evolution of human head hair, but it is possibly that tightly curled hair was the original condition in modern humans and that other hair types evolved as humans dispersed out of tropical Africa.”