Via Norbert Wu - Antarctic images ... The deadly box jellyfish is the only jellyfish that can see.

Via Gabon Expedition: Oil Rigs Are ... Small fish find a home among the tentacles of large jellyfish.

Via EUO © OCEANA Carlos Minguell ... A jellyfish commonly seen in the Mediterranean.

Via Jellyfish, Both Bioluminescent and Fluorescent A lot of the species are bioluminescent.

Via In the deep dark Sea This one lives in Berlin Zoo, Germany.

Via 8 Beautiful Bioluminescent Creatures From ... Not much is known about these deep-water jellyfish, which have been found off the coast of Antarctica and Alaska.

Via Nature - Week 3 Gallery ... Photographed in Chetumal Bay, Mexico.

Via Jellyfish And this one was shot in Monterey, although the photographer admits to photoshopping the colors to make them darker and stand out.

Via 17 Most Beautiful Jellyfish Species ... Cannonballs are prominent from North America’s eastern seaboard all the way to Brazil.

Via Jellyfish Photos -- National Geographic A species of jellyfish that can be found in the waters of the Pacific Ocean. It is a giant jellyfish, with its bell measuring up to 1 m (3 ft) in size, and its oral arms extending up to 6 m (20 ft) in length

Via 35 Beautiful jellyfish in ocean ... They look just like fireworks.

Via Photo Uploader for Pinterest A species of deep sea-dwelling crown jellyfish.

Via Isotope - Oracle Fox The lake is packed to the gills with two different species of jellyfish - the golden jellyfish and moon jellyfish.

Via Jellyfish Print, Nature Print, Beach ... Well it's not really Dart Vader - it's the Narcomedusae Found in the Arctic, this is a fairly new discovered species with 4 tentacles and 12 stomach pouches. It swims holding out its poisoned tentacles in front, better to ambush prey.

Via Yellyfish Photographed at Quays site, Ras Mohamed Park, Egypt.

Via Rhizostoma pulmo Also known as the Barrel jellyfish, or the Dustbin-lid jellyfish. It is the largest jellyfish found in British waters.

Via British Jellyfish The most commonly encountered jellyfish along the Australian eastern coast.

Via Bell Jellyfish01 02-28-13 You can see amazing jellyfish in aquariums - like this on at the Birch Aquarium in La Jolla, California.

Via deep blue sea Also called the Australian Spotted Jellyfish, these are native to the Pacific Southwest waters.

Via Elfo Cinzento Moon Jellyfish sure do look incredible when they congregate.

Via White-spotted Jellyfish swimming - Australian ... I know we've seen white-spotted jellyfish but this photo is too good to pass.

Via Best Wildlife Pictures: British Nature ... This shot won the title of Best Picture in the British Nature Awards 2011.

Via Fascinantes imágenes de medusas - ... Don't you just love this color?

Via The monsters of the deep ... Well a jellyfish has to eat too!

Via oceanservice.noaa.gov Is this what a jellyfish would look like if Versace designed it?

Via The Blue Oceans Wonder One of the beautiful things about photos of jellyfish is that their wonderful shapes and colors really stand out against the dark background of deep ocean waters.

Via In pictures: The world's best ... This amazing specimen was photographed at Ningaloo Reef, Australia. And here endeth the excursion into the world of jellyfish. Do tell us of your experiences with jellyfish if you've had any.