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Starfish Epidemic That Killed 5 Billion Is Finally Solved

September 2, 2025

Scientists have finally solved the mystery behind the devastating starfish wasting disease that has killed over 5 billion starfish across the Pacific Ocean since 2013. The culprit behind this massive starfish die-off affecting more than 20 species from Mexico to Alaska has been identified as a deadly bacteria called Vibrio pentenicida, though the question “why now” remains.