With its charismatic appearance and awe-inspiring migrations, it's not surprising that the monarch butterfly motivates ...

Elon Musk’s Tesla finally sets a shareholder meeting date amid doubts about his long-denied $56 billion pay package This ...

What do milkweed, monarchs, and a Buffalo park event have in common? The answer may surprise you—and inspire you.

Along the 35-mile stretch between Sonora and Ozona, a “river of monarchs” was flying across the highway at windshield height. Maresh veered a bit in an attempt to miss one butterfly and ended up ...

The monarch butterfly is widely recognized and widely dispersed across North America and it's in trouble. Federal officials decide soon whether it gets protection under the Endangered Species Act.

Monarch butterflies are among the most famous arthropods in the world, and humans seem to want to keep them around. The question is whether they can rise to the challenge. Read more.

The migratory monarch butterfly was flagged as endangered on the IUCN Red List, but federal protection in the US is still up in the air.

Monarch butterflies cannot fly at temperatures below 55 degrees. Instead, they huddle together in orange and black clusters in the trees until the air warms again.

Monarch butterflies from Canada stop to rest in Cleveland's Wendy Park on their way to Mexico on Sept. 12, 2023. Sue Ogrocki/AP hide caption ...

Monarch butterflies are an unexpected victim of the widespread adoption of genetically modified crops, Rep. Peter DeFazio, D-Ore., said last week. Environmental impacts, however, are the focus of ...

Monarch butterflies hanging from tree branches 60 Minutes Anderson Cooper: There're so many of them on the branches of the trees, the-- the-- the branches are all pointing toward the ground.

Monarch butterflies are making their flight north after wintering in Mexico. Here's what to know about one of Earth's fascinating flyers in Michigan.