Look at those awesome Jelly Fish! pic from a WIRED article on the Monterey Bay Aquarium: "The aquarium is home to the largest jellyfish exhibit of its kind. Currently, Black Sea nettles, seen here, call this 2500-gallon tank home. The apparatus includes a circulating water flow that mimics ocean currents and keeps the nettle’s delicate skin from rubbing against the acrylic walls" Photo: Jon Snyder/Wired.com