Standing sentinel near the highest point in the East Bay Regional Park District, an ancient blue oak is our window into a spectrum of life in the orbit of one grand tree.

Call of the Galls
July 1, 2009 •
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Standing sentinel near the highest point in the East Bay Regional Park District, an ancient blue oak is our window into a spectrum of life in the orbit of one grand tree.
One measure of the ecological richness of the Bay is its role as a major nursery for five resident species of sharks.