Thermal cameras just installed in the San Francisco Bay this May have been picking up whale spouts nearly every day.

Sage Ono is a photographer and writer based in Monterey Bay, CA, focused on documenting aquatic ecosystems and the people who depend on them, as they both are increasingly impacte ...

Sage Ono peeks into a small pool on Swamp Creek, in search of rare McCloud River redband trout. Sage Ono It’s hard to imagine a more scenic place to be devoured by mosquitoes than wildflower-speckled ...

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For months, the two-inch Sierran treefrog sang alongside rival males in his breeding pond, enticing females with a thousand kreck-eks. As summer arrives, the pond dries and his breeding job is ...

There comes a moment in many a naturalist’s life when they discover nudibranchs, and lose their mind. For Ken-ichi Ueda, it happened in 2003. New to the Bay Area, he became fixated on the gemlike sea ...

The fine layers of blueschist at Turtle Rock were created when basalt was exposed to high pressure and low heat deep in the Earth. David Wimpfheimer Seashells unearthed during summer gardening. Masses ...

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Editor’s note: The Ground Beneath Us is a new column that will appear quarterly in print and online. I grew up moving between two landscapes that could not have felt more different, yet together ...

In summer there are low-tide mornings when the San Francisco Bay water is only knee-deep and the soft, slippery mud sucks hungrily at my feet. Wading into my usual swimming spot on the edge of the Bay ...

How much is nature worth—specifically? In this issue, we look at the multibillion-dollar business that has quietly grown up around that question. We cover the growing pains of a Bay Area tech startup ...