Two genes however, KITLG and ASIP, have mutations associated with lighter skin that have high frequencies in Eurasian populations and have estimated origin dates after humans spread out of Africa but before the divergence of the two lineages. It has been observed that adult human females are consistently lighter in skin pigmentation than males in the same population. One of the most recently proposed drivers of the evolution of skin pigmentation in humans is based on research that shows a superior barrier function in darkly pigmented skin. The tanning process can also be created by artificial UV radiation. Download video.
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McVean, Gil ed. Women would wear full-length clothes when outdoors, and would utilize gloves and parasols. Journal of Applied Social Psychology. They found c.