Add Yahoo as a preferred source to see more of our stories on Google. A monarch butterfly at the Coastal Access Monarch Butterfly Preserve in Los Osos, Calif., on Jan. 20. (Gary Coronado / Los Angeles ...

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 ...

Monarch butterflies are one symbol of immigrants, their seasonal migration likened to the journey of so many around the world. But the colorful harbinger of hope is facing a crisis itself. The final ...

SPOKANE — A Washington State University butterfly expert described painted ladies as a "cosmopolitan" butterfly because they can be found on every continent aside from Antarctica. The ladies are ...

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 population, whose presence is ...

The number of monarch butterflies has dropped dramatically in the state of California. If something does not change, they could one day be listed as a species that is in danger of extinction. The ...

Upcoming campus construction plans near Strawberry Creek could tear through the habitat of a native butterfly species.

Scientists are hoping Californians will help paint a clearer picture of the state's monarch butterfly population. Ahead of California Biodiversity Day starting Saturday, the California State Parks ...

Scientists and volunteers explain where to go, when to visit, and how to support this beautiful species. Monarch butterflies migrate to California each fall to escape cold weather and cluster in ...

(Beyond Pesticides, July 16, 2025) A study following a mass mortality event of approximately 200 monarch butterflies (Danaus plexippus plexippus) in Pacific Grove, California, highlights the role of ...

The California State Parks Foundation is asking Californians to track sightings of western monarch butterflies to help save the dwindling insect population. The California State Parks Foundation, a ...

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 ...