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Leptasterias

The Smallest Stars Have Gone Out

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More than 20 species of sea star suffered in a disease outbreak that started in 2013. But in many places in the Bay Area, one small star hasn’t returned.

Mount Diablo, a Story of Place

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This is an excerpt from photographer and longtime Bay Nature contributor Stephen Joseph’s new book, Mount Diablo, A Story of Place and Inspiration. The book consists of hundreds of Joseph’s photographs, taken over three years on the mountain, and features essays by local conservation leaders.

black walnut tree

Tree Detectives

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The Northern California black walnut led scientists into a genetic mystery: is this a rare tree, or a common one?