The Xerces blue butterfly went extinct along the San Francisco coast some 80 years ago. But scientists have identified a ...

After Hurricane Andrew ripped through South Florida in 1992, the already-scarce Miami blue butterfly almost went extinct: No one recorded a single sighting for years. Finally, in 1999, a cheer went up ...

The California Academy of Sciences used genetic testing to identify a blue butterfly species similar to the Xerces species ...

All the butterflies were dead by Aug. 25. According to the Environment Ministry’s red list on endangered species, the Ogasawara blue butterfly was categorized as “Critically Endangered ...

A recent study combining data from more than 76,000 surveys from 35 monitoring programs across the country found butterfly populations declined 22%.

A comprehensive study of U.S. butterfly populations shows dramatic declines in most species, but Pacific Northwest ecologists ...

“Endangered species protections can help ... In Southern Nevada, the Mount Charleston blue butterfly is another species that has similar federal protections. The new proposed protections are ...

After Hurricane Andrew ripped through South Florida in 1992, the already-scarce Miami blue butterfly almost went extinct: No one recorded a single sighting for years. Finally, in 1999, a cheer went up ...