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Blue butterflies back in San Francisco, after Xerces extinction
The Xerces blue butterfly went extinct along the San Francisco coast some 80 years ago. But scientists have identified a ...
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Thousands of Mysterious Blue Creatures Wash Up on Bay Area Beaches After Warmer Winters
Thousands of Velella velella, blue jellyfish-like creatures, are scattered along the beach at Aquatic Park in San Francisco on April 3, 2025, after washing up on shore. (Beth LaBerge/KQED) When ...
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Blue butterflies return to San Francisco Presidio, 80 years after Xerces species extinction
The California Academy of Sciences used genetic testing to identify a blue butterfly species similar to the Xerces species that went extinct and disappeared from the San Francisco coastline.