Over the past 20 years the U.S. butterfly population has declined 22%, a dramatic loss that has scientists concerned. "The easy number to think about is the total number of butterflies in your yard.

Alarming declines in populations across the country are potential harbingers that no more butterflies could soon become a reality, researchers said Thursday. “Action must be taken,” Elise ...

America's butterflies are disappearing because of insecticides, climate change and habitat loss, with the number of the winged beauties down 22% since 2000, a new study finds. The first ...