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

It’s hard to overlook the brilliant orange and black wings of a monarch butterfly as it moves through a garden of flowers. It’s also hard to believe that the life cycle of this incredibly colorful ...

One of the most recognizable and widely dispersed insects in North America may soon be headed for protections under the Endangered Species Act. In early December, federal wildlife officials will ...

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 ...

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 ...

Professor Elizabeth Crone, Department of Evolution and Ecology, checks a non-native milkweed in the San Francisco Bay Area for monarch butterfly eggs and caterpillars. Known for long-distance ...

A fleeting blur of black and orange fluttered past Jenny Welch. Beside a sign labeled “monarch waystation,” the 62-year-old volunteer mingled with guests looking to purchase native Florida plants, ...

The monarch butterfly population has declined in recent decades, leading to a proposed listing as threatened under the Endangered Species Act. People can help monarch butterflies by planting milkweed, ...