Why do jellyfish float with the ocean currents?

Jellyfish float with ocean currents because they are weak swimmers and rely on the water’s movement to travel and find food. Their bell-shaped bodies pulse rhythmically to help them move vertically, but horizontal movement is controlled by the currents. Floating with the currents allows jellyfish to encounter plankton, small fish, and other prey. This passive lifestyle is highly energy-efficient and suits their simple anatomy and feeding strategy.