What Your Nose Knows
Skin pigmentation is usually our primary indicator of where a person comes from. We may not realize it, but the shape of our nose can indicate which region of the world we come from as well. Different regions of the world vary in local climate conditions; being anywhere from below sub-zero to 134 degrees. Our noses are specifically designed to compensate for the various temperatures/humidities. In most cases, people who have wider nostrils come from warmer climates whereas people with more narrow nostrils come from colder climates. Northern Europeans, living in cold climates, tend to have more narrow nostrils. Narrow nostrils was a naturally selected favorable trait because they are more efficient in humidifying cold, dry air. I never really thought about my nose for a use other than smelling, now I know it is an indicator of where I’m from.