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Nares \NAIR-ees\ n. The openings of the nostrils. The nose poking out of a person's face is only the tip of the iceberg when it comes to odor perception. The real business of sniffing goes on behind the nose in the nasal cavity--a mazelike sac where incoming air gets funneled past olfactory receptors. Researchers in Germany and the United States used MRI scans to show that the size of one's nares correlates with the volume of the hidden cavern within. The findings, reported February 17 in Physiology & Behavior, suggest that people with large nares may have an olfactory advantage over people with more petite features.

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Title Annotation:SCIENCE NOTEBOOK; nares, nostril openings
Author:Shugart, Jessica
Publication:Science News
Article Type:Brief article
Geographic Code:1USA
Date:Apr 6, 2013
Words:116
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