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Science  26 Nov 2010:
Vol. 330, Issue 6008, pp. 1165
DOI: 10.1126/science.330.6008.1165

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Summary

ScienceNOW reported this week that a new analysis finds that evolutionary history, not diet, determines the makeup of our intestinal bugs; a spacecraft has successfully returned asteroid dust; and fish sleep soundly in mucous cocoons; among other stories.