Frogs are Green – or at Least the Living Ones

Just like the proverbial canary in the coal mine, where canaries served as human sentinels in subterranean conditions, amphibians today are viewed by many as serving thatcropped-FrogsRG_header-2013 same role for the terranean landscape.  Because amphibians, such as frogs and salamanders, are sensitive to habitat loss and environmental pollution, they have become the biological sentinels of the environmentContinue reading

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