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.

transport or kill an endangered species. A threatened listing allows for exceptions to those protections. In the monarch’s case, the proposed listing would generally prohibit anyone from killing ...

Monarch butterflies are a "canary in the coal mine." They are an indicator of things to come if we don't protect the delicate species.

(AP) — U.S. wildlife officials announced a decision Tuesday to extend federal protections to monarch butterflies ... an endangered species. A threatened listing allows for exceptions to those ...