The Smith's blue butterfly may be tiny, but it's endangered in a big way ... Get the latest on our work for biodiversity and learn how to help in our free weekly e-newsletter.

After Hurricane Andrew ripped through South Florida in 1992, the already-scarce Miami blue butterfly almost went extinct ... Get the latest on our work for biodiversity and learn how to help in our ...

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 ...

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 ...