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.

U.S. Fish and Wildlife Service announced plans to list monarch butterflies as a threatened species under the Endangered Species Act.

The monarch butterfly population continues to shrink due to factors such as climate change. People working to help the species say proposed federal protections could boost existing efforts.

New protections for monarch butterflies are in the works as the U.S. Fish and Wildlife Service proposes a new rule.

U.S. wildlife officials announced a decision in December to extend federal protections to monarch butterflies after years of warnings from environmentalists that populations are shrinking and the ...

A threatened listing allows for exceptions to those protections. In the monarch's case, the proposed listing would generally prohibit anyone from killing or transporting the butterfly.

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.

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 ...