Long considered a source of odor and embarrassment, the humble armpit may be coming up in the world. On the microbial level, a person's underarms are akin to lush rain forests brimming with diversity—and that's a good thing—according to a new "topographic map" of human skin. Most of our skin is like an arid desert, said study co-author Julia Segre, of the National Human Genome Research Institute in Bethesda, Maryland. "But as you walk through this desert you encounter an oasis." (source: news.nationalgeographic.com)
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