Egbert Giles Leigh Jr. (born July 27, 1940, in Richmond, Virginia) is an evolutionary ecologist who spends much of his time studying tropical ecosystems. He is a researcher for the Smithsonian Tropical Research Institute and is well known for the work he has done on Barro Colorado Island. He is a US citizen, but has resided at the Smithsonian in Panama for nearly 50 years. Along with studies on Barro Colorado Island, Leigh is also known for the research he has done related to the Isthmus of Panama and its historical significance on the evolution of South American species.
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