The main factor correlated with human populations losing skin pigmentation is moving away from the equator.
What is melanin?
Melanin is a specific protein associated with skin pigmentation in humans and mammals in general.
- In humans, melanin levels are related to the amount of solar radiation, which is a consequence of latitude.
- In regions of low latitude, melanin levels are higher than in high latitude regions.
In conclusion, the main factor correlated with human populations losing skin pigmentation is moving away from the equator.
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