Habitat destruction, pesticides and extreme weather fluctuation due to climate change are all to blame for the butterfly’s decline. This year’s particularly poor showing can also be attributed ...

WATCH: How conservationists are rebuilding monarch butterfly habitat on the Central Coast How one organization is rebuilding monarch butterfly habitat on the Central Coast The Pismo Beach State ...

A monarch butterfly at the Coastal Access Monarch Butterfly Preserve in Los Osos, Calif., on Jan. 20. (Gary Coronado / Los Angeles Times) ...

However, their numbers have been a pleasant surprise, with more butterflies arriving this year than last, according to the caretakers of their main habitat in Mexico. Michoacán is home to the ...

Fewer-than-usual monarch butterflies migrated through San Luis Obispo County this winter, according to data from the conservation-focused nonprofit the Xerces Society. “It feels like a punch to ...

New data detailing the abundance of the eastern monarch butterfly colonies wintering in central Mexico’s forests estimate that the species occupied only 2.2 acres during the 2023-2024 winter season—59 ...