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Saturday, March 9, 2019

Anthropology: Human and Natural Selection

The chapter 2 in the textbook Cultural Anthropology mentions almost the reflection in enculturation of nonhuman primates onto humans one. In this chapter, I really impress about the idea natural infusion. vivid selection is the process by which organism better adapt to the environs reproduce to a greater extent effectively compared with little well-adapted forms(The evolution of humanity and culture) The natural selection, for me, is the best explanation for the deflection between our groundbreaking valet and nonhuman primates. From the beginning, every nonhuman species, including humans, had a common root.However, because of the difference sources of food, they deviated their body structures (teeth, intestine) to adapt to their dietary needs. For example, frugivores eat fruits, so their big count teeth make them easily bite foods. On the other hand, folivores pitch the very strong chewing teeth to help them break leaves into gloomy pieces, easily to digest because of t heir richness of cellulose chemical. In the article Ancient Genes and unused-fangled Health written by S. Boyd Eaton and Melvin Konner, they alike talk about the judgment of natural selection in another way.They discuss about the change in elevation of ancient human compared to modern humans. According to them, the height of humans changed because of the decrease of protein intake in their dietary pattern. About 30,000 geezerhood ago, the average height of men is about 59 (177. 1cm), women 55 (166. 5cm) compared to modern human nowadays, men average 58 (174. 4cm), women 54 (163. 4cm). In my opinion, this decrease in height is also a kind of natural selection. Before, human food mostly obtained by foraging. All foods were absolutely savage. They contained higher protein.The more agriculture developed, the less the protein intake in the animal meat was. Therefore, humans obtained less casual protein than before. After generations, the human genes tend to evolute to adapt to the new daily protein needs. The new genes made human body structures get smaller. As the result, with smaller bodies, humans needed less protein to maintain the daily activities. In this case, natural selection represents as a primary purpose in human body form. Next, another idea which I really like is the female role in the ancient sociality.As I mentioned earlier, when human didnt know anything about agriculture, their food were mostly obtained by foraging. Most women went garaging, while men went hunting. However, because of the terminal point of hunting weapons, the hunting foods were not enough for the whole sociality. Therefore, women, who the ones gave majority of food, had precedent in the community. I think by the time women got power, the world was more peaceful. No war, no death, no tear. I believe that the world would be much better in the future if women, again, have the power, have a strong influence in the politic manner on the world.

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