Butterfly populations are rapidly declining, new study shows
Butterfly populations have dropped by 22% in the United States, according to a new study published Thursday in the journal Science.
First national analysis finds America's butterflies are disappearing at 'catastrophic' rate
The first countrywide systematic analysis of butterfly abundance found that the number of butterflies in the Lower 48 states has been falling on average 1.3% a year since the turn of the century, with ...