A new report shows that the population of eastern monarch butterflies has nearly doubled compared to the previous year.

Monarch butterflies are making their flight north after wintering in Mexico. Here's what to know about the fascinating, fragile traveler.

The U.S. Fish and Wildlife Service has announced the reopening of the public comment period for a proposed rule to list the ...

The number of monarch butterflies that spent the winter in Mexico doubled this year, giving hope for a species that has faced ...

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

The high-altitude forest here is the perfect microclimate for the species, and it’s one of the few places in the world where ...

If you want to observe the monarch butterflies up close, you may want to take a road trip to the only butterfly house in ...

Apparently, the Eastern Monarch Butterfly population has doubled in size this year. Based on previous studies, Monarch ...

One of the hundreds of species impacted is the monarch butterfly, which was recently estimated by the Xerces Society for Invertebrate Conservation to have a population of fewer than 10,000 individuals ...

The first countrywide systematic analysis of butterfly abundance found that the ... Last month an annual survey that looked just at monarch butterflies, which federal officials plan to put on ...

MEXICO CITY, Mexico — The number of monarch butterflies wintering in the ... experts said Thursday. The annual butterfly count doesn’t calculate the individual number of butterflies, but ...