'Preserving butterflies is not just about preserving beauty and color, but about the stability and health of ecosystems on ...

Federal wildlife officials on Tuesday moved to add the monarch butterfly to its endangered species roster, citing decades of steep population decline of the striking black-and-orange insect. The U.S.

An international team of scientists have identified nine new species of butterflies using a combination of geographical, morphological and molecular analysis. Subscribe to our newsletter for the ...

How five proposed Trump Administration changes threaten protections for struggling species in the San Francisco Bay Area.

Adult monarch butterflies are large with bright orange wings, white spots and black veins and boarder. The U.S. Fish and Wildlife Service is recommending federal protections for the species as factors ...

The once-common orange-and-black butterflies have declined by 90% in recent decades, with the latest count showing the second smallest population on record, according to the Center for Biological ...

The Western monarch population has plunged more than 95% since the 1980s, and has a more than 99% chance of extinction by 2080. Western monarchs primarily spend winters along the California coast.