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The fundamental division of forms of life on Earth is not that between plants and animals, as is commonly assumed, but between prokaryotes—organisms composed of cells with no nucleus, that is, bacteria—and eukaryotes—all other life forms.
Lynn Margulis
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Life is bacterial and those organisms that are not bacteria have evolved from organisms that were.... Gene exchanges were indispensable to those that would rid themselves of environmental toxins.... Replicating gene-carrying plasmids owned by the biosphere at large, when borrowed and returned by bacterial metabolic geniuses, alleviated most local environmental dangers, provided said plasmids could temporarily be incorporated into the cells of the threatened bacteria. The tiny bodies of the planetary patina spread to every reach, all microbes reproducing too rapidly for all offspring to survive in any finite universe. Undercover and unwitnessed, life back then was the prodigious progeny of bacteria. It still is.
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From the paramecium to the human race, all life forms are meticulously organized, sophisticated aggregates of evolving microbial life. Far from leaving microorganisms behind on an evolutionary "ladder," we are both surrounded by them and composed of them. Having survived in an unbroken line from the beginnings of life, all organisms today are equally evolved.
Lynn Margulis
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No written law has ever been more binding than unwritten custom supported by popular opinion.
Carrie Chapman Catt
Lynn Margulis
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Born:
March 5, 1938
Died:
November 22, 2011
(aged 73)
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