WASHINGTON— The annual count of migratory monarchs who spend the winter in Mexico was released today and shows that the ...

The number of monarch butterflies wintering in the mountains west of Mexico City, rebounded this year, doubling the area they ...

Scientists have discovered a new species of spider in the Nerja cave in Spain. The spider measures only about 0.04 inches in ...

Little-understood and vastly underappreciated, insects play an outsize role in supporting life on earth. They pollinate ...

Butterflies are declining rapidly across the contiguous United States, including in Massachusetts. Research published in the ...

A new study finds the number of butterflies has dropped 22% since 2000, a new study finds. Scientists blame insecticides, ...

The population wintering in central Mexico's forests occupied 4.42 acres, up from 2.22 acres during the previous winter.

Researchers identified over 100 species that have dropped by more than 50 percent in the last two decades: "This is a wake-up ...

Butterflies are beloved creatures that inspire art and play an important ecological role, but according to new research ...

The population of butterflies - the beautiful insects that play a vital role in pollination and the health of ecosystems - ...

The number of butterflies in the contiguous United States declined by 22 percent this century, a collapse with potentially ...