Oedipina complex

Smithsonian Tropical Research Institute
April 28, 2015
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Smithsonian Tropical Research Institute

Salamanders do not tolerate salt water well. Researchers who study salamanders in South America tend to agree that the Isthmus of Panama must have functioned as a land bridge more than 3 million years ago because salamanders originated in North America. (Oedipina complex photo courtesy of Smithsonian Tropical research Institute)