Noses undoubtedly, and sometimes unfortunately, get passed
down from parent to offspring. This article sheds light on research showing how
nose shapes are sculpted overtime in response to local conditions of our
various ancestors. Although there are a wide variety and diversity of nose
shapes, when we take a closer look we can see many similarities that happen to
be linked to climate. The research conducted on this topic analyzed the
dimensions, angles, and protrusions of 2,637 noses of individuals of four
populations: North Europeans, South Asians, East Asians, and West Africans. By
comparing this data to local climates and humidity levels of those different
populations, researchers were able to define what nose shapes thrived in what
areas. It is believed that natural selection called for narrow nostrils in
cold/ dry climates because long narrow nostrils better humidify and warm the
air in cold and dry areas.
When studying genetics, it is important to consider all
external causes for a trait, condition, illness, etc. Our environment plays an
important role in who we are and what we look like.
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