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    Lynn Margulis
    Science1900sEvolutionary Biology

    Lynn Margulis

    Biologist who showed cells evolved by teaming up.

    Women in STEM

    Their Story

    Lynn Margulis was an evolutionary biologist who proposed that some parts of complex cells were once separate, free-living bacteria. This idea, called endosymbiosis, was doubted at first but is now widely accepted. Her work changed how scientists understand the history of life.

    Era

    1900s

    Field

    Evolutionary Biology