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Marcuse

(7,473 posts)
4. Natural selection in high latitudes promotes lighter skin over time.
Fri Feb 9, 2018, 08:06 PM
Feb 2018

The sunlight is less concentrated away from the equator and the suddenly unneeded protective melanin sunblock inhibits production of Vitamin D.

http://humanorigins.si.edu/evidence/genetics/human-skin-color-variation/modern-human-diversity-skin-color

Latest Discussions»Retired Forums»Video & Multimedia»Cheddar Man shows white s...»Reply #4