Monarch butterflies from the western United States have arrived in Santa Cruz and other parts of the California Coast, ...

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

PACIFIC GROVE, Calif. -- There is a ray of hope for the vanishing orange-and-black Western monarch butterflies. The number wintering along California's central coast is bouncing back after the ...

SAN FRANCISCO – The number of western monarch butterflies overwintering in California dropped by 30% last year, likely due to how wet it was, researchers said Tuesday. Volunteers who visited sites in ...

Ultra-light tracking tags are being deployed for the first time locally on Western Monarch butterflies to monitor how and where ...

Citizen scientists and volunteers have counted over 233,300 monarch butterflies across the western United States as part of Xerces Society’s 27th annual count. Despite ongoing efforts to save the ...

Federal wildlife officials announced this week that monarch butterflies qualify to be protected as an endangered species. But, the iconic insect won’t be receiving that status under the Endangered ...

After two straight years of increases, the number of monarch butterflies along the California coast dropped this winter. Monarchs show up each year along the coast to wait out the cold months. But ...

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in California this winter, a foreboding sign for the future of the beloved ...