The Fender’s blue butterfly has fluttered away from the brink of extinction. The species, once so rare it was thought to be extinct, is no longer considered endangered, according to a January 11 ...

Within the southern two-thirds of these dunes lies a preserve, home to the largest population of the endangered El Segundo blue butterfly. Yet these insects, along with another endangered local ...

Or rather, she made it right, building a net out of a community of friends and her devotion to resurrecting a cerulean-blue, thumbnail-size butterfly once believed extinct — the Palos Verdes blue.

On Tuesday, the Times revealed that a team a scientists had vindicated a nearly seventy-year-old theory of his about the development of the Polyommatus blue butterflies: [I]n a speculative moment ...

It’s been roughly 80 years since the Xerces blue butterfly was last spotted flitting about on pastel wings across coastal California sand dunes. But scientists are still learning about the insect.

Biologist Durrell Kapan, Ph.D. of the California Academy of Sciences says the butterflies will be replacing a long-lost species called the Xerces Blue that went extinct in the 1940s. "The Xerces ...

The Blue Morpho butterfly, a stunning creature from Costa Rica, is known for its large size and vivid blue upper side. But there's more to that blue than just beauty. And as the Museum of Life and ...

The scarce butterfly can be found in grasslands and around host plants such as wild blue lupine and wild indigo. Their numbers continue to decline, and they are predicted to be federally endangered.

Not far from the Concord Municipal Airport, between a post office and a dance gym, sits a 28-acre field that’s been restored as a refuge for an endangered species of butterfly. Karner blue ...

A nature reserve has seen numbers of a rare species of butterfly reach record highs. One count recorded 1,714 silver-studded blue butterflies at Studland and Godlingston Heath in Dorset - the ...