A group of scientists and volunteers released seven silvery blue butterflies in San Francisco’s Presidio on Tuesday in an effort to add a hint of new life to a biodiversity-constrained world. The ...

There’s good news tonight for a team in Presidio National Park, working to introduce Silvery Blue butterflies to the ...

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 ...

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 ...

For decades, an "extremely rare" fossil sat unidentified in Japan's Museum of Unique Insect Fossils. Discovered in 1988 in ...

One year ago, a team of earnest conservationists released a few dozen silvery blue butterflies at the Presidio, hoping they ...

“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 ...