Now open to all: 1,500 acres of oak woodlands in Solano County, at Patwino Worrtla Kodoi Dihi Open Space Park.

With the arrival of January, Bay Nature begins its 25th year of publication. Can you believe it? Twenty-five years. That is a ...

Bay Nature connects the people of the San Francisco Bay Area to our natural world and motivates people to solve problems with nature in mind.

We’re tracking what nature projects have been funded so far in our area—like an experimental kelp-forest restoration, major upgrades to the Presidio, and a battle against Tahoe invasives. (Help us add ...

« Science Is A Piece of Cake: California Forests Volunteer at The Secret Garden » ...

Beneath the oak woodlands, expanses of wildflowers, and trickling seeps that make Patwino Worrtla Kodoi Dihi Open Space Park lie volcanic rocks formed 3 to 5 million years ago when the crux between ...

Former National Park Service wildlife biologist Matt Lau highlights the Point Reyes snowy plover population. Learn about their ecology and natural history, as well as conservation efforts, the ongoing ...

The Mission blue butterfly takes its name from San Francisco — the original population was discovered on Twin Peaks, at the time considered part of the Mission — and is the city’s only endangered ...

As Karen Swaim drove through the night in the North Livermore Valley, the California tiger salamander emerged from the dark shining under her headlights: stubby-legged and gleaming obsidian, with ...

TO GET TO THE EXCEEDINGLY rare plant called California sea-blite you go down to the east shore of San Francisco on an unmarked industrial road, past warehouses and jumbled rail lines. Cement plant ...