A study compiled data from more than 76,000 butterfly surveys across the continental U.S. The declines seen in the last 20 ...

The monarch butterfly's annual migratory journey from Canada to Mexico is a breeze compared to the federal government's ...

The Trump administration said Tuesday that it is reconsidering adding protections to the monarch butterfly as a threatened ...

Butterfly milkweed has lots of ornamental appeal. This adaptable milkweed is hardy in many zones and was named the 2017 Perennial Plant of the Year.

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

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

Butterflies are vanishing nationwide due to habitat loss, climate change and use of insecticides, according to a new study, ...

“You can really make a difference to the local population. Any individual flower you put out it likely to get visited,” said ...

A fritillary butterfly perches on blooming milkweed at Patuxent Wildlife Research Center in Laurel, Md., June 5, 2019. (AP ...