Butterflies declined by 22% in just 2 decades across the US - there are ways you can help save them
The causes involve more than just habitat loss, but there are steps you can take to help save these delicate creatures ...
CBS News (Video) on MSN51m
Alarming new data on butterfly decline in the U.S.
The total amount of butterflies in the U.S. declined by 22% over two decades, a new study shows. Eliza Grames, an assistant professor at Binghamton University and co-author of the study, joins CBS ...