The city hopes to provide support for the endangered species as it migrates for winter.

More than a dozen volunteers planted 850 milkweeds throughout the Spring Ridge Wildlife Sanctuary on Monday as part of a budding monarch butterfly habitat conservation project. Through a grant from ...

Federal wildlife authorities announced a proposal to list the monarch butterfly as a threatened species. The U.S. Fish and Wildlife Service wants public feedback on a plan to list the migratory insect ...

A new monarch butterfly habitat opened in Atascadero, giving migrating butterflies what officials call a "vital rest stop" ...

The Western monarch population has plunged more than 95% since the 1980s, and has a more than 99% chance of extinction by 2080. Western monarchs primarily spend winters along the California coast.

The incredible, migrating monarch butterflies have arrived in Michigan after several generations spent weeks flapping their wings to traverse thousands of miles between Mexico and the Great Lakes ...

Fewer monarch butterflies were spotted this spring, even as milkweed classes helped boost habitat and support future ...

The prospect of thousands of offshore wind turbines spinning in the waters between New York and New Jersey may have unintended consequences for threatened monarch butterflies that migrate from Long ...

More monarch butterfly habitat may be added alongside crops in Iowa and across the nation, thanks to a yearslong Iowa State University research project. North American monarch populations have ...

The plight of monarch butterflies has long been documented. Unfortunately, the news isn’t getting better, but there are slivers of hope, thanks to the butterflies themselves. The number of monarch ...

SAN DIEGO — U.S. Fish and Wildlife Service has proposed listing monarch butterflies as a threatened species and has considered some possibly contradictory ways to protect them, Nicholas Storer, vice ...

Thirty delicately carved monarch butterflies greet walkers and cyclists who cross Fredericton's Bill Thorpe Walking Bridge, which spans the Saint John River. Each brightly painted wooden butterfly has ...