They've been drifting through the oceans, trailing their long stinging tentacles from gelatinous bell-shaped bodies, for close to 650 million years. And now they've been captured in all their beauty and complexity, in a new exhibit at Mooloolaba's UnderWater World Sea Life.
Jellyfish Kingdom, which was unveiled in December 2013 as part of a $6.5 million refurbishment at the Sunshine Coast aquarium attraction, is Australia's largest jellyfish exhibit.
Hundreds of jellyfish from five different species, including the translucent Moon Jelly and the formidable Blue Blubber, are on display in a hands-on interactive zone.
UnderWater World Sea Life Curator of Fishes Kate Willson said that breeding and housing a wide range of both common and rare jellyfish would help the public see that there was more to these marine animals than summer stings.
Public education as to the ecological significance of jellyfish and the importance of research and conservation was thus integral to the exhibit.
More jellyfish species would be added in the months to come, Ms Willson added, allowing visitors to explore their different colours, shapes and motion through the water.
Other new UnderWater World Sea Life attractions include a tidal pool, seahorse sanctuary, coastal wreck and ocean walk through zones. Brightly-coloured fluorescent corals, giant clams, leaf scorpionfish and razor fish are also stars of the show.
The attraction features a range of cool experiences too - such as diving with sharks, swimming with seals and sleeping under the sea.
Getting up close and personal with the superstars of the ocean. Underwater World Sea Life image.