Solar-powered backpacks to save endangered monarch butterflies in California

Scientists are using tiny solar-powered devices to track endangered monarch butterflies. Researchers are studying how these butterflies use their overwintering habitats and nectar sources. The migratory monarch butterfly was listed as Endangered on the IUCN Red List in 2022. This technology helps collect movement data and understand habitat use in California. Citizen scientists can also contribute observations through the Project Monarch app.