If You're Going to San Francisco...
You can leave your heart in San Francisco, but please keep your trash out of its bay. Surrounded by cities, losing freshwater input and suffering from diking, filling and the introduction of exotic species, California's 1,600-square-mile bay-delta estuary has endured enough hardship. San Francisco Bay: Portrait of an Estuary (University of California Press, $34.95) demonstrates that even though the Bay is in dire straits, there's plenty left to celebrate. Photographer David Sanger captures the natural and man-made beauty of the area, and author John Hart's lively vignettes chronicle its history and describe environmental initiatives that could one day restore equilibrium to this delicate ecosystem.—Frank Diller
"Penguins are 10 times older than humans and have been here for a very, very long time," said Daniel Ksepka, Ph.D., a North Carolina State University research assistant professor. Dr. Ksepka researches the evolution of penguins and how they came to inhabit the African continent.
Because penguins have been around for over 60 million years, their fossil record is extensive. Fossils that Dr. Ksepka and his colleagues have discovered provide clues about migration patterns and the diversity of penguin species.
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