The number of monarch butterflies overwintering this year in Mexico has nearly doubled, according to the 2025 annual census.

A federal plan to protect monarch butterfly habitat provides broad carveouts for farming practices. The U.S. Fish and Wildlife Service’s proposed listing of the monarch butterfly as a threatened ...

New data detailing the abundance of the eastern monarch butterfly colonies wintering in central Mexico’s forests estimate that the species occupied only 2.2 acres during the 2023-2024 winter season—59 ...

This year’s count of 4.42 acres of occupied forest habitat is nearly twice as large as last year's, but eastern monarch butterfly populations remain far below the long-term average. The 2024 ...

Monarchs are among the most recognizable and best loved butterflies in North America, but you might have noticed fewer of them over the last few years. Given the less frequent sightings, you might ...

And March 12 is National Plant a Flower Day, the perfect day to bask in the sunlight and plant flowers that will help pollinators like the endangered eastern monarch butterfly. The sun is out ...