Ancestral Climates May Have Shaped Your Nose.
'Ask anyone what the nose does, and the reply will most likely be related to smell. We appreciate our noses because they help us experience flowers and fresh-baked cookies.
In fact, our honkers have another, more important function: They warm and humidify the air we breathe, helping prevent illness and damage in our airways and lungs. Because of this, scientists have long suspected that nose shape evolved partly in response to local climate conditions. In cold, dry climates, natural selection may have favored noses that were better at heating and moisturizing air.
A team led by scientists at Pennsylvania State University has found more evidence of the relationship between the noses we have now and the climates where our ancestors lived.
In a study published in PLOS Genetics on Thursday, the researchers found that nostril width differed significantly among populations from different regions around the world. Moreover, the higher the temperature and absolute humidity of the region, the wider the nostril, the researchers found, suggesting that climate very well may have played a part in shaping our sniffers.'>>>
https://www.nytimes.com/2017/03/16/science/ancestral-climates-may-have-shaped-your-nose.html?
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Whiskey. 
Interesting read. Thank you, elleng. ♡
