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- Variations in human skin color are adaptive traits that correlate closely with geography and the sun’s ultraviolet (UV) radiation. As early humans moved into hot, open environments in search of food and water, one big challenge was keeping cool.
humanorigins.si.edu › evidence › geneticsHuman Skin Color Variation | The Smithsonian Institution's ...
Jan 28, 2019 · Human skin color reflects an evolutionary balancing act tens of thousands of years in the making. There’s a convincing explanation for why human skin tone varies as a global gradient, with the darkest populations around the equator and the lightest ones near the poles.
- Bridget Alex
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Are skin colors evolutionary adaptations?
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Skin color was darkest where surface UV was strongest, the overlay clearly showed, and lightest where surface UV was weak. After ten years of digging, the two had arrived at what amounts to the first comprehensive theory of human skin color.
- Modern Human Diversity - Skin Color
- Modern Human Diversity - Genetics
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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. As early humans moved into hot, open e...
People today look remarkably diverse on the outside. But how much of this diversity is genetically encoded? How deep are these differences between human groups? First, compared with many other mammalian species, humans are genetically far less diverse – a counterintuitive finding, given our large population and worldwide distribution. For example, ...
Cann, R., Stoneking, M., Wilson, A., 1987. Mitochondrial DNA and human evolution. Nature352, 31-36. Cavalli-Sforza, L.L., Menozzi, P., Piazza, A., 1994. The History and Geography of Human Genes. Princeton University Press, Princeton, NJ. Ebersberger, I., Metzler, D., Schwarz, C., Pääbo, S., 2002. Genomewide comparison of DNA sequences between human...
Searches related to Are different shades of skin color evolutionary adaptations?
www.science.org · content · articleNew gene variants reveal the evolution of human skin color - AAAS
Oct 12, 2017 · But different groups of people in Africa have almost every skin color on the planet, from deepest black in the Dinka of South Sudan to beige in the San of South Africa. Now, researchers have discovered a handful of new gene variants responsible for this palette of tones.
Jun 15, 2017 · In this article, we reviewed several cases of skin color adaptation in various populations of modern humans and archaic hominins. These cases show the similarities and differences of mechanisms of skin color adaptation across populations, and provide some insights into human evolutionary history.
- Lian Deng, Lian Deng, Shuhua Xu
- 2018
In The Biology of Skin Color, Penn State University anthropologist Dr. Nina Jablonski walks us through the evidence that the different shades of human skin color are evolutionary adaptations to the varying intensity of ultraviolet (UV) radiation in different parts of the world.
Sep 24, 2020 · In The Biology of Skin Color, Penn State University anthropologist Dr. Nina Jablonski walks us through the evidence that the different shades of human skin color are evolutionary adaptations to the varying intensity of ultraviolet (UV) radiation in different parts of the world. Our modern human ancestors in Africa likely had dark skin, which is ...
