Gut check reveals vast multicultural community of bugs in bowels

Mention the phrase "diverse ecosystem," and it conjures images of tropical rainforests and endangered coral reefs. It also describes the human colon.

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<p><a href="http://www.physorg.com/news146219786.html">Gut check reveals vast multicultural community of bugs in bowels</a></p> <p>Mention the phrase "diverse ecosystem," and it conjures images of tropical rainforests and endangered coral reefs. It also describes the human colon.</p>