Some of the largest clusters this season were found in Santa Cruz County, with 1,406 monarchs at Lighthouse Field State Beach ...

The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend ...

The natural phenomenon of the iconic monarch butterflies migrating south for the winter is a fascinating one - and it's one ...

ASGA's vice president of science and innovation told sugarbeet growers the potential listing of monarch butterflies as ...

One of these collaborations is the planted butterfly gardens in and around the Chickasaw Nation. Thousands have become ...

The number of monarch butterflies spending the winter in the western United States dropped dramatically this year even as ...

The iconic monarch butterfly is declining across North America. You can help make a difference by providing the species with ...

Once, millions of monarchs wintered in California. But climate change, habitat loss, widespread pesticide use and disease ...

This winter, volunteers from the Xerces Society, a nonprofit environmental group, tallied just 9,119 western monarchs — a ...

Just over 9,000 monarchs were counted in California last winter, the second lowest ever since the annual count began in 1997 ...

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in ...

The number of monarch butterflies in California is in sharp decline this year. This is the second-lowest population recording ...