Tuesday, December 10, 2013
Sunday, December 8, 2013
Tuesday, December 3, 2013
Skin Deep Human evolution and skin color
It's all about Vitamins
1. Why did humans evolve dark skin pigmentation?
2. What are the risks associated with being folate depleted?
3. How does the risk of being folate depleted relate to the process of natural selection for human skin color?
4.Why don't other primates living near the equator (gorillas, chimpanzees) have dark skin pigmentation?
5. Why did humans evolve low (think light skin) skin pigmentation?
6. What are the risks of being Vitamin D deficient?
7. How does being Vitamin D deficient relate to the process of natural selection for human skin color?
7. At what latitude can humans no longer produce enough Vitamin D regardless of skin color?
8. How come humans can now live above this Vitamin D latitudes regardless of skin color?
1. Why did humans evolve dark skin pigmentation?
2. What are the risks associated with being folate depleted?
3. How does the risk of being folate depleted relate to the process of natural selection for human skin color?
4.Why don't other primates living near the equator (gorillas, chimpanzees) have dark skin pigmentation?
5. Why did humans evolve low (think light skin) skin pigmentation?
6. What are the risks of being Vitamin D deficient?
7. How does being Vitamin D deficient relate to the process of natural selection for human skin color?
7. At what latitude can humans no longer produce enough Vitamin D regardless of skin color?
8. How come humans can now live above this Vitamin D latitudes regardless of skin color?
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