Butterfly expert Luke Brown says the species is one of the ... by pigments - materials that absorb some wavelengths of light and reflect others. Only male blue morphos display the characteristic ...

A male embarks on a complicated courtship ritual by giving ... This pastel-coloured species is the most widespread blue butterfly in Britain. Males are brighter shades than females, and their blue ...

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 ...

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 ...

The natural world is replete with hermaphrodites, animals that may outwardly appear male or female but have the reproductive organs of both. Their less common cousins are gynandromorphs ...

Pretty much the first two-thirds away from the ocean was all dunes. That was a perfect habitat for a butterfly, a little blue butterfly, that flew, feeding on a specific host plant called deer weed.

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 ...