Some of the largest clusters this season were found in Santa Cruz County, with 1,406 monarchs at Lighthouse Field State Beach ...

The number of monarch butterflies spending winter in the western U.S. dropped dramatically this year, despite moves to extend ...

ASGA's vice president of science and innovation told sugarbeet growers the potential listing of monarch butterflies as ...

One of these collaborations is the planted butterfly gardens in and around the Chickasaw Nation. Thousands have become ...

The number of monarch butterflies spending the winter in the western United States dropped dramatically this year even as ...

The number of monarch butterflies in California is in sharp decline this year. This is the second-lowest population recording ...

The iconic monarch butterfly is declining across North America. You can help make a difference by providing the species with ...

Once, millions of monarchs wintered in California. But climate change, habitat loss, widespread pesticide use and disease ...

This winter, volunteers from the Xerces Society, a nonprofit environmental group, tallied just 9,119 western monarchs — a ...

Just over 9,000 monarchs were counted in California last winter, the second lowest ever since the annual count began in 1997 ...

A group of researchers in Germany created 3D printed wings inspired by the monarch butterfly. These robotic wings are ...

The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing habitat and climate ...