SAN FRANCISCO (KGO) -- An intrepid group of butterflies is about to help turn the clock back nearly a century in San Francisco's Presidio. Biologist Durrell Kapan, Ph.D. of the California Academy of ...

Referred to as the Blue Emperor, the electric blue wings of this butterfly come shining bright above tropical green jungles. A close kin of the Blue Morpho, its wings are mirror-like and ...

The Living Peninsula Mural Project’ was launced with a mural of the Palos Verdes blue butterfly and will expand over the next ...

SAN FRANCISCO — More than 80 years ago, a beautiful butterfly called Xerces blue that once fluttered among San Francisco’s coastal dunes went extinct as stately homes, museums and parks ate up its ...

Butterflies are common throughout the world; however, there is more to them than meets the eye. From optical illusions in their wings to generation-spanning migrations and caterpillars committing ...

Although there are over 17,500 species of butterflies in the world, only about 4% of them can be found in the US, with the most often sighted being the cabbage white butterfly. Therefore, it’s no ...

Castelló d’Empúries, Spain — Each week for the last 25 summers, biologist Constantí Stefanescu has walked a line through a series of fields in Catalonia, counting butterflies. On a sun-beaten day last ...