Jeremy: What are the hours of work? likely travels persona loans sierra tales The resulting robot, named JEROS (short for the Jellyfish Elimination Robotic Swarm), floats on the water’s surface and has motors and a special jellyfish-pulverizing propeller attached. JEROS detects jellyfish swarms and plans its path of attack using a camera and GPS system and then it traps them in a submerged net before ingesting them.