Bay Nature Institute honors remarkable local conservation and nature leaders and activists at our annual Local Hero Awards.

Three heavy metals were found at concentrations thousands of times greater after the fire. The implications for wildlife hang ...

During the Bay Area’s damp winters, we can’t afford to be fair-weather hikers. Fortunately, some hikes in the Bay Area are ...

Grant funding from BIL and IRA, Biden’s signature climate laws, has been frozen. “We’re in a biodiversity meltdown,” says butterfly scientist Stu Weiss. “We don’t have time for these kinds of delays.” ...

In 1941, two UC Berkeley graduate students recorded 31 species living in a mussel bed on Dillon Beach. In 2019, PhD candidate ...

In the shallows of south Lake Tahoe, diver Brandon Berry is slurping up clouds of algae with an underwater vacuum cleaner. Snorkeling above, I can hear his Darth Vader breaths better than I can see ...

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 ...

Once, not so long ago, there lived a fish in the Galapagos Islands. Its name was Azurina eupalama, the Galapagos damsel; it was not particularly different from any other small rocky reef fish.

An era sunsets Tule elk (Cervus canadensis nannodes) were driven nearly to extinction, then reintroduced to Point Reyes by the National Park Service in 1978. The largest herd, fenced in to protect ...

It’s a cool February morning in the San Francisco Bay Area’s Coastal Range. The air smells fresh and mulchy thanks to the recent rain. As you meander down the trail, a persistent tapping sound drifts ...