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.

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 ...

A burst of butterflies has suddenly brightened our garden. The ethereal winged creatures are emerging from chrysalises nestled in soil over the winter. Nectar-producing flowers supporting butterflies ...

Butterflies are common throughout the world; however, there is more to them than meets the eye. From optical illusions in their wings to generation-spanning migrations and caterpillars committing ...

The Fish and Wildlife Service will conduct a one-year status review of the Iowa skipper butterfly to determine whether it deserves protection under the Endangered Species Act. Contrary to its name, ...

Conservationists said a nationwide butterfly count has yielded disappointing results despite hopes that the record hot summer might have helped to offset decades of declining numbers. The Big ...

ATLANTA — The monarch butterfly could soon receive federal protection, which would be a significant step toward protecting one of North America's most beloved species. The U.S. Fish and Wildlife ...

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.