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"One in five butterflies lost in the US since 2000, study finds"
Mongabay Environmental News · One in five butterflies lost in the US since 2000, study findsA study in the United States found a dramatic 22% decline in butterfly populations between 2000 and 2020. Previous research has focused on a specific butterfly species or regions of the country. For this study, researchers wanted to understand overall butterfly population trends across the U.S. They gathered records of 12.6 million individual butterflies across […]