Monarch butterflies join the Red List of endangered species, thanks to habitat loss, climate change and pesticides
- Written by Kristen A. Baum, Professor of Integrative Biology and Associate Dean for Research, Oklahoma State University
Monarch butterflies cluster on a eucalyptus tree at Pismo State Beach's Monarch Butterfly Grove in California. Ruby Wallau/Getty ImagesOn July 21, 2022, the International Union for the Conservation of Nature placed the migratory monarch butterfly on its Red List of threatened species and classified it as endangered. Monarchs migrate across North...


