Monarch season starts in earnest in the United States during the month of March, even though the whole migration doesn’t necessarily appear all at once. However, butterflies arriving from Mexico find ...

Every March, millions of monarch butterflies begin a 3,000-mile migration from central Mexico to Canada, but no single ...

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

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

To some people, seeing a monarch butterfly has meaning. These orange and black fliers can be a symbol of strength, change and more.

An annual count of monarch butterflies conducted by the United States and Mexico as the insects migrate back and forth over ...

Mexico's monarch butterfly population jumped 64% in 2026, offering hope even as experts warn the species remains at risk of ...

Monarch butterfly migration is a long journey. Learn how these amazing butterflies make the trip, where monarchs migrate to and why.

Millions of monarch butterflies from across North America will begin their journey southward in search of a warmer winter climate. However, monarch butterflies face several threats, including humans, ...

A total of 160 monarchs across Mexico’s six butterfly sanctuaries have been tagged with new transmitters that will provide the most detailed look to date at the first leg of the the insects' migration ...

A daring surgical procedure has given a doomed monarch butterfly a new lease of life. The delicate operation was captured on ...