A first look at new research from the forests of central Mexico.

Add Yahoo as a preferred source to see more of our stories on Google. Monarch butterfly on a person's finger - Matt Champlin/Getty Images Monarch butterflies (Danaus plexippus) have long captivated ...

Monarch butterflies from the western United States have arrived in Santa Cruz and other parts of the California coast, clumping on branches of Monterey pine, coastal redwoods and eucalyptus, where ...

Learn facts about the monarch butterfly, including how how to tell male and female monarchs apart and if monarchs are ...

The monarch butterfly is iconic in North America — but in Montana, it is a rare sight. That’s why when landscaper Kathy Ross ...

Monarch Watch is contributing to a comprehensive study of the Monarch butterfly migration by tracking butterflies with tiny ...

Monarch butterflies are well-known and beloved migratory pollinators in North America. NNehring via Getty Images For generations, monarch butterflies have traveled thousands of miles across North ...

Monarch butterflies that migrate to Mexico each year covet forests in Estado de México and Michoacán. So often do cartels.

LAKE TAHOE, Calif. – The iconic monarch butterfly, known for its striking orange and black coloration, migratory patterns, and love of milkweed, was recently proposed for federal protections by the ...