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  • Close Up of Fern — Image by © Radius Images/Corbis
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  • A Pennsylvania woman developed a urinary tract infection cased by Escherichia coli bacteria that were found to be resistant to colistin, an antibiotic that is seen as the last line of defense
  • The Kelp Forest offshore of La Jolla, California. A kelp forest. Giant kelp grows rapidly, up to 2′ per day, from the rocky reef on the ocean bottom to which it is anchored, toward the ocean surface where it spreads to form a thick canopy. Myriad species of fishes, mammals and invertebrates form a rich community in the kelp forest. Lush forests of kelp are found through California’s Southern Channel Islands