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Twan Leenders is President of the Roger Tory Peterson Institute of Natural History in Jamestown, New York. He is coauthor of The Wildlife of Costa Rica: A Field Guide, also from Cornell, and author of A Guide to Amphibians and Reptiles of Costa Rica.
Twan Leenders is President of the Roger Tory Peterson Institute of Natural History in Jamestown, New York. He is coauthor of The Wildlife of Costa Rica: A Field Guide, also from Cornell, and author of A Guide to Amphibians and Reptiles of Costa Rica.
