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Conservationists invoke the constitutional rights of nature to save biodiverse areas.
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The return of landscape-changing beavers brings chaos, controversy, and unique benefits.
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An unlikely alliance is giving the endangered red-cockaded woodpecker a new lease on life.
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Scientists partner with farmers, fishers, and nuns to save two aquatic salamander species.
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Ten years after a massive dam removal, salmon are returning to the Elwha River.