Felisa Wolfe-Simon

Dec. 03, 2010

Life, But Not As We Know It

Researchers report that they've found a strain of bacteria that can swap arsenic for the element phosphorus in its metabolism -- even incorporating arsenic into its DNA.

astrobiology, exobiology, bacteria, life, arsenic

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Michael Pollan Talks Plants and Food

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Myths and Tips on Keeping Your Cool This Summer

Think caffeine dehydrates you? Or that you can't get too much water on a hot day? Douglas Casa, of the Korey Stringer Institute, sets the record straight.

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