SCIENCE IN THE NEWS DAILY
1,000 Species of Bacteria Found on Healthy Humans
from the Los Angeles Times (Registration Required)
Here's a finding that'll make your skin crawl: A healthy human epidermis is colonized by roughly 1,000 species of bacteria.
Furthermore, the microorganisms have evolved to exploit the unique attributes of those body parts they call home, according to a study to be published today in the journal Science. Some thrive in the desert of the forearm. Others are happiest in the tropical rain forest of the armpit.
The study, conducted by a team of researchers from the National Institutes of Health, reflects a growing realization that bacteria have colonized us inside and out -- and that their presence is not only harmless but also probably essential to the proper functioning of the body.
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