Monarchs traveled to a remote part of Mexico, a journey they've made for thousands of years, and wintered there. Now tens of millions of the butterflies are on an epic aerial journey back north.

For thousands of years, millions of monarch butterflies have migrated from the northern U.S. and Canada to Mexico for the winter. But exactly how they know where to go is still a mystery.

Scientists assess US monarch populations each winter by measuring the area they occupy in this fir grove in Mexico, and by counting butterflies in coastal California, where monarchs west of the ...

Commissioner Sid Miller, Department of Agriculture report double increase in Mexico monarch butterfly population after 2024 ...

Beauty on the Wing: Life Story of the Monarch Butterfly is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV ...

Hummingbirds aren't the only spring-time animals on the move across Georgia. Sightings of monarch butterflies have been seen predominantly near southern cities like Savannah and St. Mary's, according ...

SALT LAKE CITY — The U.S. Fish and Wildlife Service said it is reopening the public comment period for a proposed rule to list the monarch butterfly as a threatened species under the Endangered ...

The Xerces Society for Invertebrate Conservation says, along the California coast, 4.5 million monarchs overwintered in the ...

The monarch butterfly population has declined in recent decades, leading to a proposed listing as threatened under the Endangered Species Act. People can help monarch butterflies by planting ...

Hummingbirds aren't the only spring-time animals on the move across Georgia. Sightings of monarch butterflies have been seen predominantly near southern cities like Savannah and St. Mary's ...