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Upside-down Jellyfish Create 'Stinging Water' That Kills Prey by Launching Mucus 'Grenades'

4 days ago|95 views
Scientists say they have unraveled the mystery of the unusual "stinging water" phenomenon long reported by swimmers and snorkelers who have strayed close to upside-down jellyfish—the creatures launch toxic mucus filled with tiny "grenades" of stinging cells.