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Rocks may tell tale of first land plantsUNC-Chapel Hill scientist uses fossil fragments to explore Earth's past.By CATHERINE CLABBY, Staff WriterBefore Patricia Gensel can bring more rocks into her fourth-floor laboratory, she must haul others out. Otherwise, safety crews warn, her floor might fall down. For the complete story ... http://newsobserver.com/news/nc/orange/chapel_hill/story/1514242p-7681114c.html |
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