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Amphibians have been on the planet for more than 360 million years, but suddenly they're slipping away. From Australia to Panama, 1/3 of the world’s amphibians are threatened with extinction. It’s being called the greatest mass extinction since the dinosaurs. Ecosystems are beginning to unravel, important medical cures are vanishing, and we're losing a dear, old friend. As one of the greatest environmental crises of our time unfolds, citizens and scientists are rushing to stem the tide before the next frog crosses the thin, green line.
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