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How Much Should You Worry About Mountain Lion Attacks in Bay Area Parks?

June 13, 2018 by Ali Haynes

Or should the mountain lions worry about us?

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Are Baby Rattlesnakes the Most Dangerous Biters?

May 01, 2018 by Tony Iwane

People often say baby rattlesnake bites are more dangerous than adult rattlesnake bites. Is the conventional wisdom correct?


Watching Wildlife Move Through Sonoma Valley

March 30, 2018 by Sabine Bergmann

Science has led us to an increasing understanding of the importance of wildlife corridors. Sonoma pioneers the monitoring of a series of corridors.

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Meet the “Electric Blue Tinfoil” Butterfly

March 30, 2018 by Serena Ingalls

One lepidopterist calls it North America's "most beautiful small butterfly." The Sonoran blue is also an indicator of weather and climate.

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Charismatic Sea Ducks Seem to be Disappearing, But It’s Hard to Say Why

March 30, 2018 by Mary Catherine O'Connor and Erica Langston

Are surf scoters disappearing from the San Francisco Bay? Or from the world?

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How to Tell Northern California Hawks Apart

March 30, 2018 by John Muir Laws

Watching distant raptors in dim light? Ignore color and look at values.

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It’s the Season for Tundra Swans

January 02, 2018 by Claire Peaslee

How to find and identify the great birds in the Central Valley.

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Toyon and Cedar Waxwings: A Classic Pairing

January 02, 2018 by Sue Rosenthal

Cedar waxwing flocks picking through bushes of red berries is a classic sign of late fall.

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How Long Does It Take to Restore a Population of Centenarian Fish?

January 02, 2018 by Serena Ingalls

The yelloweye rockfish can live to be 118 years old. It was declared overfished more than a decade ago, but recovery means patience.

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Woodrats Fumigate Their Nests With Bay Leaves to Control Fleas

January 02, 2018 by John Muir Laws

Life is so surprisingly webbed and interconnected.

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Bay Nature