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by AMNH on
Jellies come in many shapes, sizes, and colors. Even so, true jellyfish (from the phylum Cnidaria) share a few key traits in common. The first is their umbrella-like body, known as a “bell.”
Hanging from that bell, you can see the long, thin tentacles of the jelly fish. These body parts are often lined with structures known as nematocysts, which deliver the jelly’s signature sting.
Among their many tentacles, some jellyfish have parts known as oral arms. These long appendages move captured prey to the animal’s mouth, which is usually found on the underside of the bell. Some species have even ditched a mouth entirely. These jellies ingest food directly through openings in their oral arms.
To learn more about jellies—and experience life in their underwater world—visit The Jelly Dome through June 30 in the Milstein Hall of Ocean Life.