I agree with the sexual selection theory.
2007-10-05 13:05:43 · 8 answers · asked by plushpenguin 3 in Social Science ➔ Anthropology
Melanin is a chemical in all of us. It makes our freckles, skin color, tans and eye color. Melanin comes to the surface of the skin in sunlight. It protects humans from some of the sun's dangerous radiation. More of that dangerous radiation hits the Earth at the equator and less hits the Earth the farther away from the equator you go. Humans who evolved near the equator genetically favored dark protective levels of melanin. The farther away from the equator tribes of humans live, the less melanin is needed for solar protection and is not genetically dominate.
2007-10-05 13:44:19 · answer #1 · answered by Anonymous · 7⤊ 0⤋
There is also evolutionary pressure to develop light skin in higher latitudes. There is not as much UV light and vitamin D production is less than ideal with too much melanin. Lighter skin therefore has at least that as a powerful evolutionary selection mechanism.
2007-10-05 14:28:47 · answer #2 · answered by bravozulu 7 · 6⤊ 0⤋
distinct pores and skin hues originated reckoning on the position you lived. in case you lived in the direction of the equator you mandatory to have extra pigments interior the floor to guard you from the sunlight. The extra faraway from the equator the a lot less that replaced into mandatory. It replaced into an evolution procedure, in case you'll. What in the international is the sexual determination idea with regard ro pores and skin colour?
2016-10-20 05:22:25 · answer #3 · answered by Anonymous · 0⤊ 0⤋
I believe it depended on the climate because people from Europe are very light etc. It might be some alteration on the genes. Survival of the fittest
2007-10-05 13:21:38 · answer #4 · answered by moror2804 1 · 0⤊ 0⤋
Remember Gregor Mendel, the guy who "fathered" genetic using peas?
Many traits are reproducible and come from genes.
2007-10-05 13:22:12 · answer #5 · answered by BAL 5 · 0⤊ 0⤋
Oh, I will go with the King James version. The sexual selection theory doesn't make sense; some men prefer dark-skinned women, some prefer pale.
The silly notion about blacks coming from hot climes and pale faces from cold doesn't work, either; blacks who have lived in cold climes for tens of thousands of years stay black; whites who have lived in hot climes for tens of thousands of years stay pale.
2007-10-05 16:09:46 · answer #6 · answered by Nothingusefullearnedinschool 7 · 0⤊ 4⤋
purely because of the different gods we have therefore its in the genes
2007-10-05 13:30:23 · answer #7 · answered by storybud 3 · 0⤊ 2⤋
heres an interesting graph for you
http://en.wikipedia.org/wiki/Human_skin_color
2007-10-06 12:13:01 · answer #8 · answered by nola_cajun 6 · 0⤊ 0⤋