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Copyright National Association of Biology Teachers
Tony P. Murphy, Rosanne W. Fortner; The Case of the Missing Anurans: Frogs Vanishing from the Tropics, Missing Frogs Disappearing Frogs, 200 Amphibian Species Face Extinction, Experts Conclude. The American Biology Teacher 1 November 2001; 63 (9): 670–676. doi: https://doi.org/10.2307/4451214
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