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

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, ...

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

The Trump administration has delayed a decision on whether to extend federal protections to monarch butterflies indefinitely MADISON, Wis. -- President Donald Trump's administration has delayed a ...

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

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

The number of monarch butterflies in California is in sharp decline this year, and biologists say record-high late summer temperatures and drought in the west likely contributed to the dropoff. The ...

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

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

Monarch butterfly on a person's finger - Matt Champlin/Getty Images Monarch butterflies (Danaus plexippus) have long captivated humans due to their fascinating life cycles and physical characteristics ...

Tree cutting at a known monarch butterfly habitat in Ventura was halted after city officials arrived at the scene and ordered ...

It’s a sunny July afternoon, and Grayslake neighbors Annie Lawson and Heather Bauer are standing at the side of Lawson’s home, carefully going through her garden of milkweed plants. Lawson points at ...