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

A newly released survey of the eastern monarch’s 2025-26 winter population in Mexico showed a 64% increase over 2024-25.

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

A key monarch butterfly population is showing signs of improvement this year, but scientists warn the species remains in long ...

Two new reports estimate a 64% increase in species population and a significant decrease in forest degradation in the ...

Monarch season starts in earnest in the United States during the month of March, even though the whole migration doesn’t ...

Every year, millions of Methuselah or super generation monarchs overwinter in the oyamel fir forests of Central Mexico after a 3,000-mile journey from Canada. Then in spring, they start the whole ...

Every March, millions of monarch butterflies begin a 3,000-mile migration from central Mexico to Canada, but no single butterfly finishes the journey. It takes three to four generations working in ...

A total of 160 monarchs across Mexico’s six butterfly sanctuaries have been tagged with new transmitters that will provide ...

Many butterflies from around the world migrate each year, but no butterfly can match the incredible monarch butterfly migration. In autumn, these orange and black butterflies travel up to 2,000 miles ...

FARGO — Families had a chance to learn about monarch butterflies on Wednesday night, Aug. 20, as they began their migration. Urban Plains Park hosted a monarch butterfly tagging event Wednesday.