trueClimate and Sustainability,Discovery Science,Facultyintegrativebiology03/06/2025Study raises the possibility of a country without butterfliesButterflies are disappearing in the United States. All kinds of them — and at a rate scientists call alarming.Sue NicholsA pair of dorcas copper butterflies, a North America native species, and one of the 324 species studied in this report. Photo by David Pavlik, Michigan State University