Jellyfish {!--해파리--> Some jellyfish pulsate to propel themselves through the water. 
Image ID: nur01014, National Undersearch Research Program (NURP) Collection
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 
Photo Source: 
The NOAA Photo Library - http://www.photolib.noaa.gov 
The National Oceanic & Atmospheric Adminstration (NOAA) - http://www.noaa.gov/ 
Copyright Information - http://www.photolib.noaa.gov/aboutimages.html