Cooling weather and changing winds are helping monarch butterflies begin an extraordinary journey of up to 3,000 miles.

The San Antonio Zoo marked Dolly Day by releasing tagged monarch butterflies, honoring Dolly Parton while highlighting ...

Peak monarch butterfly migration begins in the Carolinas and Georgia as the butterflies continue their annual fall journey south.

An orange-and-black wave is moving south across North America as monarch butterflies embark on one of nature's most remarkable migrations.

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 ...

The monarch butterfly (Danaus plexippus L.) is one of the most widely popular butterfly species in North America. We are accustomed to seeing its beautiful orange wings with black-veined outlines ...

A decade ago, a federal task force announced a plan to help monarch butterflies along their great migration. The six-state ...

Why are thousands of monarch butterflies heading to AL? The annual fall migration is about to bring them through the state.

Monarch butterflies are being digitally tracked in the region for the first time. The journey could reveal long-held mysteries about the insects' migration patterns.

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in California this winter, a foreboding sign for the future of the beloved ...

Every fall, millions of monarch butterflies set off on a journey spanning thousands of miles—and several generations. Where ...