Scientists are grappling with a stark population decline of the western monarch butterfly after the species’ numbers hit a ...

First giant pandas from China in decades make ... monarch population in multiple California counties. “The iconic monarch butterfly is cherished across North America, captivating children ...

"The iconic monarch butterfly is cherished across North America, captivating children and adults throughout its fascinating life cycle," U.S. Fish and Wildlife Service Director Martha Williams ...

The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing habitat and climate ...