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Thousands of blue sea creatures wash up on California beaches

  • Posted on April 28, 2026
  • By San Francisco Chronicle
  • 0 Views
  • 1 min read
In brief

California's coastlines experienced an unusual marine phenomenon as massive swarms of bioluminescent jellyfish-like organisms invaded beaches statewide. These gelatinous creatures, scientifically termed Velella velella, arrived in unprecedented numbers along popular spots including San Francisco's Baker Beach. Environmental experts attribute the event to ocean current shifts and changing water temperatures, prompting beachgoers and marine biologists to investigate this extraordinary natural occurrence and its ecological implications.

Summary auto-generated by AI from the original publisher's content. Editorial standards.

Thousands of blue sea creatures wash up on California beaches
Thousands of blue sea creatures wash up on California beaches

Thousands of bright blue Velella velella, known as by-the-wind sailors, washed up on California beaches including Baker Beach in San Francisco.
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Author
San Francisco Chronicle

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