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

With springtime comes the yearly migration of Monarch butterflies, and if you want to ensure you spot these winged beauties, ...

The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend ...

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

New data detailing the abundance of the eastern monarch butterfly colonies wintering in central Mexico’s forests estimate that the species occupied only 2.2 acres during the 2023-2024 winter season—59 ...

SAN DIEGO — Working to grow a safer future, Veronica Cuadras is planting native narrow leaf milkweed to help monarch butterflies. “All you need is just a little pot, some dirt and some seeds!” Cuadras ...

This winter, volunteers from the Xerces Society, a nonprofit environmental group, tallied just 9,119 western monarchs — a ...