Our 7 fascinating facts about butterflies explore their ... There are some species, such as the Karner Blue Butterfly, that have an incredibly short lifespan of only 4-5 days.

Cal Academy of Sciences and The Presidio join conservation efforts to bring blue butterflies back to San Francisco coast. Genetic sequencing links Silvery blue butterflies to extinct Xerces blue.

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 California Academy of Sciences used genetic testing to identify a blue butterfly species similar to the Xerces species that went extinct and disappeared from the San Francisco coastline.

Butterflies are cold-blooded animals, so they have to keep cosy or they won't be able to fly around. 2/7: The delicate wings ...