The monarch butterfly is iconic in North America — but in Montana, it is a rare sight. That's why when Kathy Ross discovered monarchs breeding in her Bigfork garden last summer, she knew it ...

Suitable habitat for migrating monarch butterflies will shift southwards because of climate change, according to a study ...

Suitable milkweed habitat in Mexico may shift south, fracturing existing migration routes and possibly pushing some ...

New research shows climate change may push monarch butterflies farther south and make their long migration harder in the ...

The monarch butterfly is a beautiful and colorful creature, but it takes time to reach this stage of its adult life. Understanding a few facts about the process lets you observe it in nature with ease ...

Our neighbor Mary has a small patch of milkweed behind her potting shed. It’s shaded by a young sassafras tree, and some Japanese stilt grass is pushing its way in as well. We use neighbor John and ...

As temperatures rise, monarch butterflies begin their remarkable trek north, renewing one of North America’s most iconic ...

Retired schoolteacher Tachi Dellinger pointed inside a mesh box, where three green chrysalises hung. “This one is starting to change color,” Dellinger said. “It will turn jet black ... when it's ready ...

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

Photo Caption: This is one of a dozen winter monarch butterflies that were raised from larvae found by Bob Pish shortly before Christmas. Photograph by Bob Pish. During the 12 years this column has ...

Late last year, the U.S. Fish and Wildlife Service announced rule changes that would impact habitats and listing or delisting ...

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 ...