Evolutionary Pioneer Dies at 73

Lynn Margulis, an innovative thinker who proposed symbiosis as a major mechanism for speciation, passed away last week.

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Lynn MargulisWIKIMEDIA COMMONS

Evolutionary biologist Lynn Margulis died last week (November 22) at the age of 73. She was best known for proposing the theory of endosymbiosis, which states that rather than evolving via genetic mutation, new species were more likely to have come about via parasitic or symbiotic relationships that became permanently inter-dependent over time.

“She was always stimulating; she always had a new idea, some new connection she had seen and she couldn't wait to tell you about," Steve Goodwin, Dean of the College of Natural Resources? and the Environment told MassLive.com.

Margulis showed early aptitude in science, enrolling at the University of Chicago and earning her bachelor’s degree in zoology by the age of 18. Shortly thereafter she married her first husband, the astronomer Carl ...

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