Add Yahoo as a preferred source to see more of our stories on Google. A Silvery Blue butterfly. Gayle Laird More than 80 years after the iconic Xerces Blue butterfly vanished from San Francisco, ...

A butterfly that went extinct decades ago after the destruction of its Bay Area habitat is now the driving force behind its restoration with the help of a close relative now fluttering in its terrain.

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 ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. As the first North ...

Johnson Creek is home to a secret treasure. Unbeknownst to many Oregonians, freshwater mussels find solace in different parts of the stream, settling silently among the crayfish and rocks. A single ...

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 ...

Insecticides are threatening both honey and bumble bees. Habitat loss is threatening the monarch butterfly and hummingbirds. Even light pollution harms pollinators, threatening hawk moths and ...

Maddy has a degree in biochemistry from the University of York and specializes in reporting on health, medicine, and genetics. Maddy has a degree in biochemistry from the University of York and ...

To help raise awareness about the declining populations of many pollinating species, in 2017 the U.S. Senate unanimously voted to establish National Pollinator Week. Because pollinators are crucial ...

To help raise awareness about the declining populations of many pollinating species, in 2017 the U.S. Senate unanimously voted to establish National Pollinator Week. Because pollinators are crucial ...