At Pennsylvania State University, a team of scientists have uncovered more evidence on the relationship between the present nose and the climates of where our ancestors have lived in. An experiment was done my measuring the height, the width, and skin pigmentation of men and women whose ancestors that were born in corresponded regions. The experiment has proven that the width and height of the nostril may vary depending the region one lives in, such as people whose ancestors that lived in warm and humid areas will have a wider noses. However, people whose ancestors that lived in cold and dry regions of the world would have nostrils that are narrowed. In addition, natural selection may act on the shape of the nostril due to the climate of the region favoring the structure of the nose. Other contributors, such as inheritable traits and genetic variation can play a role in demonstrating the shape of the nose.
New York Times Here
WebMD Here
