"To say that this hypothesis was controversial was akin to saying that Napoleon had a bit of a thing about the Russians."
November 23, 2011 10:34 AM Subscribe
American biologist Lynn Margulis has died. Prolific and determined, Margulis was best known for her development of Endosymbiotic Theory, the now widely-accepted idea that complex cells began as a combination of simpler, prokaryotic ones, and the Gaia Hypothesis, which posited the Earth as a type of living organism. Some of her later ideas, including the claim that HIV is not the cause of AIDS or that caterpillers and butterflies were once separate organisms, received less support, but Endosymbiotic Theory, in the words of Richard Dawkins, remains "one of the great achievements of twentieth-century evolutionary biology."
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