As you stroll through Old Town Warrenton during the month of May, keep your eye out for tiny blue butterflies!

But a key piece of the puzzle was missing — until now. The Xerces blue butterfly, which serves as both pollinator and prey in the ecosystem, has been extinct since 1943. So scientists ...

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 ...

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Wildlife experts are bringing butterflies back to the Presidio National Park in San Francisco as part of an effort to restore ...

More than 80 years after the iconic Xerces Blue butterfly vanished from San Francisco, researchers have analyzed century-old specimens to track down its closest living relative, the Silvery Blue.

Inside the mug is a small blue and pink ... on at a bread-and-butterfly. The bucket hat is reversible and the opposite side ...

A Silvery Blue butterfly is seen under netting after its release in the Presidio's restored dune habitat in San Francisco, Thursday, April 11, 2024. (AP Photo/Eric Risberg) SAN FRANCISCO (AP) — More ...

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 ...

The park was once home to the Xerces Blue butterfly, which is believed to be the first butterfly species in the United States to be driven to extinction after the dunes that were its home were ...