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 ...

The U.S. Fish and Wildlife Service is taking steps to list monarch butterflies as threatened species and designate seven ...

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

Hundreds of volunteers and partners participated in the 28th annual Western Monarch Count by attempting to identify all of ...

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 ...

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

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

On Thursday, invertebrate conservation group the Xerxes Society released the results of their 28th annual Western Monarch ...

The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in ...

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 ...

In 2023, more than 16,000 butterflies were counted at one local grove. The most recent count was a tiny fraction of that.