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Nearly forgotten today, the native oysters of San Francisco Bay once formed large shallow-water reefs, providing critical habitat for other creatures and a major food source for Native Americans. Now, local scientists and Bay advocates are hoping to coax the remaining populations of this small mollusk back to health.
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This summer, a new exhibit in San Francisco’s Presidio celebrates one of the world’s most diverse urban bird habitats. From July 9 through August 29, “Birds of the Pacific Slope: Sights and Songs” fills the galleries of the Presidio Officers’ … Read more
At the sight of a diving juvenile Cooper’s hawk, “the squirrel reared back and opened its mouth with its paws raised in the air in a defensive pose,” notes Jim Brulet while monitoring a nest in the city of Berkeley. … Read more
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Although solidly rooted in California’s natural and cultural history, our native oaks are disappearing at an alarming rate. The loss of these magnificent trees to urbanization and Sudden Oak Death has been widely publicized, but there is another threat that … Read more
Purple needlegrass may soon gain recognition as one of California’s official state symbols, like the golden poppy, our state flower since 1903. For native grass advocates, “the hope is that a new state symbol might draw some public attention to … Read more
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The classic image of a redwood forest is one of stately tall trees, dense shade, and lots of green. The columnar trunks of the giant trees draw our gaze up to the high canopy, but if we follow them down … Read more
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The hills above Oakland once held some of the largest redwoods ever seen, one estimated at 31 feet in diameter. Ten million years ago, such trees towered over much of North America. Nothing in this long history prepared them for the coming of men, armed with axes and saws, who felled all of Oakland’s redwoods in just 15 years. But even second- and third-growth redwood forests hold their charms, not to mention the subtle suggestions of the forests they can once again become. And you don’t have to go too far from downtown Oakland to find them.
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What do you get when you scoop up 250,000 cubic yards of muck from the Petaluma River? Prime shorebird habitat, of course. Unlikely as it may seem, Shollenberger Park is a place where birders have spotted 150 bird species, from nesting avocets and stilts to harriers and egrets. And a new addition to the park will make it one of the largest publicly accessible stretches of wetlands in the Bay Area.
Imagine a landmark so prominent that anyone looking south from San Francisco or north from San Jose could spot it. Spanish missionary Padre Pedro Font wrote in his diary in March 1776: “I beheld in the distance a tree of … Read more
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On May 1, the California Academy of Sciences will open its new (temporary) doors at 875 Howard Street in downtown San Francisco. As it rebuilds its Golden Gate Park location, more than 85 percent of the animals from the permanent … Read more
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