A study compiled data from more than 76,000 butterfly surveys across the continental U.S. The declines seen in the last 20 ...

The U.S. Fish and Wildlife Service is opening a second comment period as they work to list the monarch butterfly on the ...

The Trump administration is reopening public comment on a proposed rule that would list the monarch butterfly as threatened ...

The reopening of the public comment period for the monarch butterfly will publish in the Federal Register Reading Room today.

A comprehensive study of U.S. butterfly populations shows dramatic declines in most species, but Pacific Northwest ecologists ...

The monarch butterfly's annual migratory journey from Canada to Mexico is a breeze compared to the federal government's ...

Butterfly populations are plummeting worldwide, with experts citing habitat loss, pesticides and climate change as key ...

The abundance of butterflies across the US fell by an alarming 22% in just 20 years, a new study has concluded. Between 2000 ...

Multiple studies suggest butterflies are disappearing- but why, and what can be done? Here are some possible answers, backed by science.

The U.S. Fish and Wildlife Service is reopening the public comment period for a proposed rule to list the monarch butterfly ...

The USDA said current pesticide regulations are adequate to protect monarch butterflies, commenting on a proposal to list the king of butterflies as a threatened species. In a letter to […] ...

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