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.

Monarchs traveled to a remote part of Mexico, a journey they've made for thousands of years, and wintered there. Now tens of ...

Monarch butterflies are making their flight north after wintering in Mexico. Here's what to know about one of Earth's fascinating flyers in Michigan.

By any measure, the revival of the bald eagle stands as one of the great environmental triumphs in conservation history. In ...

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

MEXICO CITY — (AP) — The number of monarch butterflies wintering in the mountains west of Mexico City rebounded this year, doubling the area they covered in 2024 despite the stresses of ...

Journey North, which gathers reports from volunteers across the country, has been tracking the butterfly’s movement since the ...

The monarch butterfly population in the eastern United States has declined sharply — an estimated 80% loss since the 1990s. Among the factors contributing to the decline: Loss of habitat, exposure to ...

Monarch butterflies left Mexico weeks ago on their annual northward migration. Now, the colorful insects are nearing Michigan as temperatures continue to warm. "Monarchs have made their way north ...