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Earth & Environment

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ANTIBACTERIAL BACKFIRE  Soaps that contain triclosan, a commonly used antimicrobial compound, could actually help disease-causing bacteria colonize the human nose. 

SMELL NO EVIL  Young damselfishes (shown) living in carbon dioxide-rich waters have trouble detecting predator odors, compared to fish in areas with less CO2 dissolved in the water.  

wood-boring clam

Wood-boring clams are among the first creatures to settle on wood underwater. They have jawlike shells that help them to burrow and gut bacteria that assist in the digestion of cellulose.

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