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Nature's death knell: How a frog's love song is a bat's dinner bell

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March 16 - Love hurts for Panama's Tungara frog. The amphibian's love song beckons not only potential mates but also its moral enemy, the fringe-lipped bat. Researchers at the Smithsonian Tropical Research Institute in Panama say it's a classic conflict between two natural pressures for survival. Sharon Reich reports.

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