The study was one of several that assessed the effects of climate change on three species of butterflies whose populations are declining.

ASGA's vice president of science and innovation told sugarbeet growers the potential listing of monarch butterflies as ...

Given the less frequent sightings, you might’ve wondered: are monarch butterflies endangered, and what can gardeners do to ...

The iconic monarch butterfly is declining across North America. You can help make a difference by providing the species with ...

I really want to spread the word that we should not give up right now,” said Isis Howard, a conservation biologist with the Xerces Society.

The U.S. Fish and Wildlife Service is planning to upgrade the monarch butterfly’s status to “threatened” under the Endangered Species Act by the end of the year, citing shrinking populations ...

The monarch butterfly’s dramatic population decline prompted a U.S. Fish and Wildlife’s proposal listing the species as threatened under the Endangered Species Act. If enacted, the ruling would enhanc ...

When a species is listed as threatened under the Endangered Species Act, or ESA, it receives various protections — what ...

Monarch butterflies in the western U.S. have dropped to just 9,119 this year. In 2023, the count was 233,394, meaning a 96% decline.

In 2023, it counted more than 230,000 butterflies and, on Friday, the organization announced that in 2024, it only saw 9,119 ...

scientists attribute the decline of western monarch butterflies to factors such as widespread pesticide use and the loss of both breeding and overwintering habitats. By identifying local species ...

In December, the U.S. Fish and Wildlife Service proposed to list the monarch butterfly as a threatened species under the U.S. Endangered Species Act. The public can comment on the listing until ...