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Tim HuttonTim Hutton - 2011-11-24 09:32:45+0000 - Updated: 2011-11-24 09:32:45+0000
Originally shared by John BaezOne of my biggest heroes has died: the revolutionary biologist Lynn Margulis. Learn what she did and watch some videos of her here.

Lynn Margulis, 1938-2011

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