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 news ...

6:35 p.m. Jan. 26, 2023: A previous version of this story said the Palos Verdes conservancy releases captive-reared butterflies. A consortium of agencies, including America’s Teaching Zoo at Moorpark ...

The Fender’s blue butterfly, found only in the Willamette Valley, is moving off the endangered species list. The U.S. Fish and Wildlife Service has announced the butterfly will be reclassified as ...

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 ...

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 ...

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. Through ...

The first insectile casualty of human activity in the United States was recorded around 80 years ago, new research has confirmed. The insect, the Xerces blue butterfly, died out in the mid-20th ...

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. From ...

From a butterfly shaped by 40,000 years of isolation to creatures 1,400 feet below the sea, scientists uncovered thousands of new species in 2025 — and these nine discoveries stood out amongst the ...