NOT all jellyfish get around on jet propulsion. Sean Colin at the University
of Connecticut says some go in for a more graceful rowing technique to get from
A to B.
Most jellyfish use short bursts of jetting to avoid predators. They don’t
feed on the move, but instead float motionless in the water with their tentacles
splayed, waiting for food to drift into reach.
Unlike the jet set, rowers are larger and less streamlined. They gently
ripple the edge of their bell, creating eddies that push them along and draw
food into their tentacles (The Journal of Experimental Biology,…
