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Correspondence

Nature 391, 738 (19 February 1998) | doi:10.1038/35732

Open Innovation Challenges

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Biology versus physics

Arndt von Hippel1

  1. 1649 Bannister Drive, Anchorage, Alaska 99508, USA
    e-mail: Email: 102251.527@compuserve.com

Your leading article "Biology versus physics" questions the existence of Kuhnian paradigms in biology (Nature 391, 107; 1998). I would offer as a candidate the demonstration by Lynn Margulis and others that mitochondria are endosymbionts descended from formerly free-living proteobacteria.