Midwestern butterfly count: Big data yields bad news and clues

Midwestern butterfly count: Big data yields bad news and cluesA 32-year study of over 4.3 million butterfly observations across the Midwest reveals widespread declines in butterfly populations.08/06/2025 Wendy Leuenberger smiles at camera while holding a monarch butterfly on her finger

Wendy Leuenberger smiles at camera while holding a monarch butterfly on her finger

https://eeb.msu.edu/news/midwestern-butterfly-count-big-data.aspxClimate and Sustainability,Discovery Science