Jellyfish hurl venom 'grenades' to snare prey

PARIS, FRANCE -- A species of jellyfish hunts its prey by hurling venom grenades to create "stinging water," researchers said Thursday, solving a long-standing mystery as to how they gather food without tentacles.

The Cassiopea xamachana jellyfish, found in shallow waters around Florida, the Caribbean and Micronesia, is a frequent nuisance to snorkelers and surfers who appear to get stung without touching the creatures.

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