Tiny by volcano standards. The Sutter Buttes are 10 miles wide and poke up 2,000 feet. In classic butte fashion, they are ...

We’re surrounded by a world of insects that we barely notice. Put on your goggles and get immersed in the riot of colors and ...

With plainfin midshipmen, black-tailed jackrabbits, black-headed grosbeaks, and yellow-faced bumblebees. Life in spring ...

For 25 years, Bay Nature has connected people to the natural world of the San Francisco Bay Area—inspiring curiosity, stewardship, and action. Now it’s time to celebrate what this community has built ...

We were trying to figure out the last creek we could get water from before starting our climb. My best friend Holly and I were on the John Muir Trail, the 211-mile route between Yosemite and Mount ...

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Instinct does play a role in nest-building, but so much more seems to be involved. Entwined with instinct are reason, ...

With a little luck we have all found that person, or group of persons, who are regularly game to join, or plan, our outdoor ...

State Route 12 cut to the horizon line of Solano County. Somewhere out of sight lay the small town of Rio Vista and the Delta. But about an hour northeast of San Francisco, midway through southern ...

Spiders — and their webs — hold a special place in our cultural mythology. Tattered webbing is a feature of any horror flick, an icon of the evil that is lurking about with the spiders themselves ...

The Pan American Highway runs through the Sechura Desert in Peru, one of the driest places on Earth -- except when El Niño arrives. (Photo by A. Duarte, Flickr Creative Commons) A low-hanging, densely ...

From creeping slime molds to brain-eating ciliates to kelp, protists may be the strangest and most misunderstood group of creatures in the tree of life. Haeckel pointed out the troublesome task of ...