Butterfly populations have dropped by 22% across 554 recorded species in the United States, according to a new study in the journal Science. "Our national-scale findings paint the most complete -- and ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER (KDVR) — In the last 20 years, ...

Butterfly abundance in the continental United States has crashed some 22% in only 20 years across 554 species counted, an alarming new scientific study involving Michigan State University found.

Brian Cassie has been counting butterflies in Massachusetts for decades. He helped create Mass Audubon’s butterfly atlas in 1986 and founded the Massachusetts Butterfly Club shortly afterwards. Now, ...

SAN ANTONIO – The International Union for Conservation of Nature added the migrating monarch butterfly to its “red list” of threatened species and categorized it as endangered in 2022. The ...

The monarch butterfly, one of the world's most beloved insects, is best known for its striking orange wings and spectacular annual migration — but the butterfly's most famous traits are also its most ...

A team of scientists has discovered that descendants of "exploratory" butterflies that colonized new habitats differ genetically from their more cautious cousins. The team, led by James Marden, a ...

Aside from a crushing loss for biodiversity, the steep decline in the US butterfly population could represent a trend for fellow insects that power American agriculture. In what they say is the ...

BOSTON (AP) — Historic butterfly communities in Massachusetts are dwindling and being rapidly replaced by their southern relatives, according to a Harvard study released Sunday. The study outlines the ...

The most extensive and systematic insect monitoring program ever undertaken in North America shows that butterfly abundance in Ohio declined yearly by 2%, resulting in an overall 33% drop for the 21 ...