The San Francisco Chronicle reports
A giant purple blob from the sea — a slug — is invading East Bay beaches and waterways this summer, and some experts say it may be caused by warmer temperatures near coastal waters.
These California sea hares are harmless plant eaters. But their big size and unusual abundance this year is turning heads at the shorelines in the cities of Crab Cove in Alameda and Miller Knox Regional Park in Richmond, as well as Lake Merritt in Oakland and Tomales Bay in Marin County
Read story at Giant purple sea slugs slime San Francisco Bay Area beaches – SFGate.
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