The U.S. Fish and Wildlife Service said it is reopening the public comment period for a proposed rule to list the monarch ...

Monarch butterflies are making their annual journey north out of Mexico to their summer breeding grounds. See where they've ...

A lively national conversation about the monarch butterfly’s future will keep rolling on, with the Fish and Wildlife Service’s extension of a public comment period that has already attracted more than ...

This year’s count of 4.42 acres of occupied forest habitat is nearly twice as large as last year's, but eastern monarch ...

The monarch butterfly population has declined in recent decades, leading to a proposed listing as threatened under the Endangered Species Act. People can help monarch butterflies by planting ...