
The Xerces blue, long gone from San Francisco, became a symbol of the fight against extinctions. Now scientists are sending in a replacement to the dunes of the Presidio. Will it take?

As statewide funding for disease surveillance runs out this year, here’s what to look out for—and how to be a friend to your local snakes.

The quarter-inch-long, brilliantly colored Delta green ground beetle is “still a bit of a mystery,” even to experts.

The city of Berkeley plans to purchase a Fourth Street parking lot and transfer the property to the nonprofit Sogorea Te’ Land Trust, as part of a recent settlement agreement over the long-contested shellmound site in West Berkeley.

Maybe we can save the Lange’s metalmark. Or maybe there’s a stand-in, waiting in the wings?

“When I took a closer look through my lens, I saw the mound had fur and a pinkish nose,” writes wildlife photographer Vishal Subramanyan.