After conservation groups took legal action on behalf of monarch butterflies, the Trump administration decided to delay a ...

Each fall, millions of monarchs from Canada and the U.S. travel thousands of miles to reach their winter home in the mountain ...

Every fall, millions of monarch butterflies embark on one of the most impressive journeys in the animal kingdom. From various ...

The Lakeshore Nature Preserve hosted University of Wisconsin Biocore students Sept. 13 to tag monarch butterflies in their ...

Conservationists are fitting Western monarch butterflies with tiny solar-powered transmitters. What they learn from these ...

Kristen Baum, director of the group Monarch Watch, said habitat loss has partially driven the large decline, including a drop ...

While the butterflies await federal protection, a local movement is underway to revive the butterflies in Goleta by ...

Thousands of monarch butterflies are currently migrating through Central Texas on their annual journey to wintering grounds ...

It's a bird, it's a plane, actually it's hundreds of Monarch butterflies migrating south for the winter. These butterflies ...

Researchers all over North America are attaching tiny transmitters to Monarch butterflies as they begin their migration to Mexico, to learn more about their stops and challenges.

The solar-powered tracking device is glued to the insect's thorax, and connects to radio towers and Bluetooth signals from ...

Project Monarch combines miniature solar-powered radio tags and smartphone detections to trace monarch butterflies across ...