How do jellyfish move through the water?

Jellyfish swim by rhythmically contracting their bell-shaped bodies, forcing water out and generating thrust. When they relax, the bell refills, and the cycle repeats. This movement is simple but effective, especially for slow drifting or gentle swimming. Some species are stronger swimmers than others, while many also use ocean currents to travel. Jellyfish do not have bones or muscles like fish do, but their bell pulse is enough for survival and feeding.