The magnetic compass is the last unknown sense in migrating animals. For some scientists, the monarch butterfly is leading ...

Editor’s Note: Nature Notes is a weekly column provided by Gulf Coast Bird Observatory ...

The Western Monarch Count is underway, a community science project that aims to understand population changes for the orange ...

For the first time in California, citizen scientists can join the effort to track monarch butterflies thanks to Blu+, a new ...

The Fish and Wildlife Service will miss by well over a country mile its deadline for deciding whether to protect the monarch butterfly under the Endangered Species Act. One year after its Dec. 12, ...

An international collaboration to track individual monarchs kicked off this fall, including James Madison University.

For a second straight year, a low number of monarch butterflies have been counted at the popular Pismo State Beach Butterfly ...

Whether you’re a butterfly fanatic or simply interested in nature, the monarch butterfly is worth a study. Beautiful and serene, monarch butterflies have a unique lifespan. But how long do monarch ...

A monarch butterfly at the Coastal Access Monarch Butterfly Preserve in Los Osos, Calif., on Jan. 20. (Gary Coronado / Los Angeles Times) The Western population of the monarch butterfly has declined ...

President Donald Trump's administration has delayed a decision on whether to extend federal protections to monarch butterflies indefinitely despite years of warnings from conservationists that ...

Biologists have attached tiny, solar transmitters to the monarch butterflies, allowing researchers and everyday visitors to ...

In recent years, the number of monarch butterflies has been declining, and researchers don’t know the exact cause.