Some jellyfish pulsate to propel themselves through the water.

Image ID: nur01014, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Location: Temperate Atlantic Ocean, offshore Cape Hatteras.
Photo Date: 1991 August
Photographer: M. Youngbluth
Credit: OAR/National Undersea Research Program (NURP); Harbor Branch Oceanographic Institution

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