This year’s count of 4.42 acres of occupied forest habitat is nearly twice as large as last year's, but eastern monarch ...

A new report finds that butterfly populations in the continental U.S. declined by one fifth between 2000 and 2020—but it’s ...

Millions of black and orange wings will flutter across the U.S. this spring, as the monarch butterflies make their annual ...

“You can really make a difference to the local population. Any individual flower you put out it likely to get visited,” said Nick Dorian, a post-doctoral researcher at the Chicago Botanic Garden who ...

A sweeping new study reveals that butterfly populations across the continental United States have plummeted by 22% over the ...

Butterfly populations are falling in the United States— by an amount that researchers are saying is catastrophic. The first ...

PISMO BEACH, Calif. (CN) — In a small tree grove at the south end of Pismo Beach on California's Central Coast, one visitor ...

WASHINGTON— The annual count of migratory monarchs who spend the winter in Mexico was released today and shows that the ...

The population wintering in central Mexico's forests occupied 4.42 acres, up from 2.22 acres during the previous winter.

Butterflies are disappearing from the United States at an alarming rate, with their total population declining by more than a ...