The deposition of Eumelanin in human skin (and thus the

Last updated: 8/7/2022

The deposition of Eumelanin in human skin (and thus the light dark variation of human skin) generally trends to provide greater pigmentation closer to the equator (where there is more cancer causing Ultraviolet light) and less deposition at greater latitudes (where less UV light is provided by the sun). If humans variation in this factor is based upon the deposition of eumelanin providing a survival advantage in areas and not so much of an advantage in other areas, then we could say this variation across the habitat of humanity (the land of Earth) is an example of...