6/20/2023 0 Comments Cu modern human anatomy program![]() Since strong sun exposure damages the body, the solution was to evolve skin that was permanently dark so as to protect against the sun’s more damaging rays. But this less-hairy skin was a problem because it was exposed to a very strong sun, especially in lands near the equator. With less hair, perspiration could evaporate more easily and cool the body more efficiently. The adaptation that was favored involved an increase in the number of sweat glands on the skin while at the same time reducing the amount of body hair. ![]() Why do people from different parts of the world have different colored skin? Why do people from the tropics generally have darker skin color than those who live in colder climates? Variations in human skin color are adaptive traits that correlate closely with geography and the sun’s ultraviolet (UV) radiation.Īs early humans moved into hot, open environments in search of food and water, one big challenge was keeping cool. Science, Religion, Evolution and Creationism: Primer.Members Thoughts on Science, Religion & Human Origins (video). ![]() ![]()
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