Habitat loss, climate change and the use of pesticides are to blame for the population decline of monarchs, says Karen ...

For both women, their efforts are a small way to combat the devastation human activity has brought to monarch butterfly ...

Monarch butterflies are now listed as endangered.

The city of Phoenix has planted several gardens to support struggling monarch butterflies, including one at the downtown ...

Monarch butterfly numbers are down by 80% overall and remain just one-third the size needed to avoid migratory collapse.

Assemblymember Dawn Addis, on behalf of the California Legislative Central Coast Caucus, introduced ACR 103 to declare July ...

The migratory monarch butterfly was flagged as endangered on the IUCN Red List, but federal protection in the US is still up in the air.

It's been another year of both discouraging and rewarding results. Here are some lessons I've learned, especially when it comes to a common parasite that can infect the insects.

Anyone who has followed the wandering flight of a butterfly and wondered where it was off to will be intrigued by Colorado Mountain College’s 2025 Common Reader book selection. “Bicycling with ...

Monarch butterflies are among the most famous arthropods in the world, and humans seem to want to keep them around. The question is whether they can rise to the challenge. Read more.

A public art installation by veteran and artist Gary Crosby aims to bring smiles and raise awareness about the endangered ...

The monarch butterfly is most renowned for its yearly odyssey. Some will travel up to 3,000 miles during their two-way winter journey.