it’s important to know that monarch butterflies cannot survive freezing temperatures, so they migrate to warmer climates as ...

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

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

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

Monarch butterflies in the western U.S. have dropped to just 9,119 this year. In 2023, the count was 233,394, meaning a 96% decline.

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

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

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

Before National Geographic published its famous August 1976 cover story detailing the search for the monarch butterfly ... the winter in central Mexico, while those in the west migrate to ...

Thogmartin and other researchers have evaluated more than 200 scenarios for restoring greater than 1.3 billion stems of ...

MADISON, Wis. — The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing ...