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June 9, 2020

Young adult Cassiopea

A young adult Cassiopea, or upside-down jellyfish, as seen from above in the lab at the Department of Invertebrate Zoology at the Smithsonian’s National Museum of Natural History.

[Research supported by National Science Foundation grant IOS 1829158.]

Learn more in the Smithsonian news story Stinging water mystery solved: Jellyfish can sting swimmers, prey with 'mucus grenades'. (Date image taken: unknown; date originally posted to NSF Multimedia Gallery: June 9, 2020)

Credit: Allen Collins

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