Greg Ruiz in San Francisco (IMAGE)

Smithsonian

Greg Ruiz in San Francisco

Caption

Greg Ruiz, a marine invasions biologist with the Smithsonian, samples invertebrates in San Francisco Bay.

Credit

Ross Whippo/Smithsonian Environmental Research Center

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This image may be used for non-commercial purposes provided attribution is included, in accordance with the Smithsonian terms of use (https://www.si.edu/termsofuse)

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