For centuries, monarch butterflies have traveled thousands of miles across North America, guided by instincts that scientists ...

For the first time in California, citizen scientists can join the effort to track monarch butterflies thanks to Blu+, a new ...

When this monarch butterfly hits the sky it won't be traveling alone. In fact, an energetic team of researchers will be ...

In late 2024, a tagged monarch named Lionel migrated from New Jersey to Florida, logging thousands of detections along the ...

While Bronson always hopes for more butterflies, she expects this season’s count to be low like last year, when the Pismo ...

Monarch butterflies from the western United States have arrived in Santa Cruz and other parts of the California Coast, clumping in the thousands on branches of Monterey pine, coastal redwoods and ...

The once-common orange-and-black butterflies have declined by 90% in recent decades, with the latest count showing the second smallest population on record, according to the Center for Biological ...

With Western Monarch butterfly populations in sharp decline, scientists on Thursday urged Southern Californians to report sightings of the species to help track and protect it. The call to action ...

The monarch butterfly (Danaus plexippus) population has plummeted by 80% to 95% since the 1990s, depending on the region and monitoring method. A major cause of the species’ decline is deforestation ...

After Kathy Marshburn lost a child, she didn’t know how she’d move on. Violet was only two months old when she died unexpectedly, of a heart condition, in 2002. Marshburn, who lived in the Houston ...

Every spring and fall, Oklahomans watch as the brightly patterned orange and black butterflies make a pitstop in the state during their miles-long, twice-yearly migrations. The migratory monarch ...