The Smith's blue butterfly may be tiny, but it's endangered in a big way. It spends its whole life within a few hundred yards of two native plants, seacliff buckwheat and coast buckwheat — and is ...

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 ...

Native to the rainforests of Mexico, Central America and South America, this bright blue butterfly has a short but stunning life. It is thought that the colour helps the males to mark their ...

With no sightings in two years, the rare Ogasawara blue butterfly, named after its island chain natural habitat far south of Tokyo and designated a national natural treasure, is considered extinct ...