The latest count of western monarch butterfly populations is the third-lowest yet, after 2024 and 2020.

The Endangered Species Act is no help yet.

The monarch butterfly, Texas' official state insect, is in the middle of its 2,200 mile migration from Canada to Mexico — and you may be just in time to witness the remarkable journey. When is peak ...

I struggled to catch my breath, but it had nothing to do with the 10,000-foot altitude. All around me, millions of monarch ...

This is an updated version of a story first published on April 20, 2025. The original video can be viewed here. Earlier this year we reported on one of the most remarkable and mysterious migrations in ...

A monarch butterfly (Dannaux plexippus) flaps its wings in Piedra Herrada Sanctuary, Mexico. Might this start a chain of events that results in a tornado in Texas? Photograph by Jaime Rojo In 1961, ...

The Trump administration has delayed protections.

On a warm summer morning, you’re sitting in your yard enjoying a slow moment, when a flash of color catches your eye. Bright orange and black wings dance through the air before alighting on a purple ...

Pacific Grove is known as ‘Butterfly Town USA’ for its role as an overwintering spot. As the insect’s population plummets, residents are coming to its rescue ...

The most unsettling declines aren't sudden collapses but slow thinnings that force us to realize, too late, that ...

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