Monarch butterflies now confront the Trump administration with its first big Endangered Species Act test, as a lively public ...

One butterfly comes so far, and then it will stop to reproduce, and then the offspring from that monarch will emerge from the ...

This year’s count of 4.42 acres of occupied forest habitat is nearly twice as large as last year's, but eastern monarch ...

The population wintering in central Mexico's forests occupied 4.42 acres, up from 2.22 acres during the previous winter.

The population of the eastern monarch butterflies in Mexico doubled this past winter season, according to a WWF survey.

National Plant a Flower Day is all about celebrating the beauty of flowers. Planting them can also help save pollinators like ...

A study, published Thursday in the journal Science, found that 22% of butterflies in the United States disappeared between ...

A Pennsylvania butterfly farmer says listing the monarch as a threatened species could do more harm than good.

The monarch butterfly population has rebounded from a near record low number in 2024, according to the latest annual survey ...

Public comments on the proposed Endangered Species Act listing for monarch butterflies are open until until March 12.

Monarch butterflies wintering in Mexico have rebounded this year, with the number doubling the area they covered in 2024 ...