We have just learned that the iconic monarch butterfly may be placed on the U.S. Fish and Wildlife Service’s endangered species list. The significant decline in the numbers of this beloved species, ...

On the slopes of a volcano in central Mexico, biologist Cuauhtémoc Sáenz-Romero and his team envision a climate refuge for oyamel fir trees and the monarch butterflies that depend on them. In 2021, ...

It happens to every nature enthusiast at least once. You spot an orange butterfly with black markings hovering around a pretty flower and say, “Oh, look, it’s a monarch!” Except, on closer inspection, ...

The flapping wings of millions of monarch butterflies at the Monarch Butterfly Biosphere Reserve in Michoacán, Mexico, create a fluttering sound that Alfonso Alonso describes as “magical.” The ...

Monarch butterflies are in decline largely because of habitat degradation, including in the Monarch Butterfly Biosphere Reserve in the forested mountains of Central Mexico. Researchers looked at ...

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 ...

FARGO — The U.S. Fish and Wildlife Service is seeking protection for a beloved species and is asking the public to play a role in its recovery. The federal agency wants the monarch butterfly listed as ...