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This is an archived article and the information in the article may be outdated.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, ...

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, ...

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.

DENVER (KDVR) — In the last 20 years, butterfly populations dropped by 22% across the U.S., according to a study published Thursday in “Science,” with some help of a Denver metro area nonprofit. The ...