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Daniel Janzen
(1939-)
American biologist
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Daniel Hunt Janzen (born January 18, 1939 in Milwaukee, Wisconsin) is an American evolutionary ecologist, and conservationist. He divides his time between his professorship in biology at the University of Pennsylvania, where he is the DiMaura Professor of Conservation Biology, and his research and field work in Costa Rica.

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Born
1939 (age 86)
Milwaukee, Wisconsin
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