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Pesticides are confirmed in Sierra frogs





Researchers recently documented the presence of fungicides, herbicides and other pesticides in Pacific tree frogs scattered across the Sierra.A new study has found a stew of agricultural pesticides from California’s Central Valley in water, soil and frogs across the Sierra Nevada.
Scientists have long known that many Sierra frogs and toads are declining in number. Besides pesticides, other studies have pointed to the presence of non-native fish and amphibians as a cause behind harm to ar...

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