While snorkeling in the Mediterranean, I watched a compass jellyfish pulse gracefully through the sunlit water.

A sudden swell tipped a barrel jellyfish into the shallows, startling the sunbathers.

Researchers study the immortal jellyfish to uncover how Turritopsis dohrnii can reverse aging.

Marine biologists were amazed when they observed immortal jellyfishes reverting to their juvenile form after injury.

When he bragged he'd beat everyone at the game, I snorted, 'you wish, jellyfish,' and walked away.

The deep-sea diver drifted through a forest of jellyfishlike organisms that pulsed with an eerie blue light.

The sculpture's jellyfishy tendrils swayed gracefully in the aquarium's currents.