Evolution of Human Skin and Skin Pigmentation - Department of Anthropology
psu.edu
Evolution of Human Skin and Skin Pigmentation - Department of Anthropology
Research on the evolution of skin color in humans was avoided by scientists for many years. Skin color is worthy of scientific investigation, however, because it is the product of over five million years of evolution in the human lineage, it the most obvious characteristic in which people vary in their appearance, and it is […]
May 12, 2023
Human Skin Color Genetics
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Human skin color evolved as a response to varying levels of ultraviolet (UV) radiation from the sun. Early humans living near the equator developed darker skin, rich in melanin, which protected against the breakdown of folic acid caused by intense UV rays. Folic acid is crucial for DNA synthesis and fetal development, making its protection essential for reproductive success. However, dark skin limits UV absorption, which is needed to produce vitamin D—important for bone health. As humans migrate
1:34
Human skin color evolved as a response to varying levels of ultraviolet (UV) radiation from the sun. Early humans living near the equator developed darker skin, rich in melanin, which protected against the breakdown of folic acid caused by intense UV rays. Folic acid is crucial for DNA synthesis and fetal development, making its protection essential for reproductive success. However, dark skin limits UV absorption, which is needed to produce vitamin D—important for bone health. As humans migrate
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