3/17/2023 0 Comments Nose shapesResearchers said that studying how traits that evolved as an environmental adaptation that may no longer be relevant may help with a better understanding of disease risks for certain individuals. "There's an evolutionary history to it that, I think, kind of demystifies the concept of race." Potential Application What this research does is offer people a view of why we're different," Zaidi said. "People are more similar than they are different. Study researcher Arslan Zaidi, from the Pennsylvania State University, explained that physical traits that are directly in contact with the environment are more likely to undergo natural selection and evolve faster, Such a nose is unsuited for cold countries as it permits masses of cold air to flood the air passages and irritate the lining membrane," Woodruff wrote. "In the tropics where the air is hot and therefore rarefied, more of it is necessary and it is essential that there should be no impediment to the air currents so the nostrils are open and wide and the nose very flat. Army physician Charles Edward Woodruff who served in the American Civil War and the Spanish-American War, which he wrote in his book The Effects of Tropical Light on White Men. Those whose ancestors were from cold and dry climates, on the other hand, were likely to have narrower nose with the strongest correlation observed in those whose ancestors were from Northern Europe - suggesting that cold and dry climates may have played a part in shaping narrower nostrils. The researchers found that the participants whose ancestors came from regions with warm and humid climates tended to have wider nostrils. At least 40 participants were recruited for each of these regions. In a new study, which was published in journal PLOS Genetics on Thursday, researchers were able to confirm this theory as they found evidence that links the shape of the nose that we have now with the climates of the regions where our ancestors lived.įor their study, the researchers involved participants whose parents and ancestors were born in regions namely West Africa, East Asia, South Asia, and Northern Europe that corresponded to their genetic ancestry.
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