Global warming is killing frogs and salamanders in Yellowstone Park

(PhysOrg.com) -- Frogs and salamanders, those amphibious bellwethers of environmental danger, are being killed in Yellowstone National Park. The predator, Stanford researchers say, is global warming.

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<p><a href="http://www.physorg.com/news144426360.html">Global warming is killing frogs and salamanders in Yellowstone Park</a></p> <p>(PhysOrg.com) -- Frogs and salamanders, those amphibious bellwethers of environmental danger, are being killed in Yellowstone National Park. The predator, Stanford researchers say, is global warming. </p>