MADISON, Wis. (AP) — The number of monarch butterflies spending the winter in the western United States has dropped to its ...

The Western population of the monarch ... by 2080. Habitat destruction, pesticides and extreme weather fluctuation due to climate change are all to blame for the butterfly’s decline.

A monarch butterfly at the Coastal Access Monarch Butterfly Preserve in Los Osos, Calif., on Jan. 20. (Gary Coronado / Los Angeles Times) ...

Editor’s Note: This article has been republished from The Conversation, a nonprofit, independent news organization dedicated to unlocking the knowledge of experts for the public good. The University ...

With the monarch population well below the thresholds at which government scientists predict migrations could collapse, the Center and more than 100 other groups have repeatedly called on Congress to ...

Monarch butterflies have declined 80 ... But the iconic orange and black butterflies are facing threats from habitat loss, climate change and the use of insecticides, according to Lisa Nordstrom ...

The proposal to list the monarch as a threatened species is not a done deal. The FWS invites comments from the general public ...

The U.S. Fish and Wildlife Service is taking steps to list monarch butterflies as a threatened species and designate seven California counties as critical habitats to deter a 99% likelihood of ...

(AP) - U.S. wildlife officials announced a decision Tuesday to extend federal protections to monarch butterflies ... for winter as critical habitat for the butterfly. The designation would ...

The Western population of the monarch ... to 4 million butterflies were estimated to spend winter in California, according to the California Department of Fish and Wildlife. Without urgent ...

Monarch butterflies, once abundant across North America, are now planned to be added to the Endangered Species List. Habitat loss, pesticide use and climate change have pushed this iconic species ...