Last year, researchers reported a 30% decrease in the population of Western monarch butterflies overwintering in California.
According to a recent report, the population of western monarch butterflies that migrate to California for the winter decreased by 30% last year, possibly as a result of unusually wet weather conditions. According to the Xerces Society, a nonprofit organization dedicated to preserving invertebrates, volunteers recorded over 230,000 butterflies during their visits to California and
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