Video: Autonomous robots search and destroy jellyfish.
The JAROS bots are a floating platform equipped with a camera system able to locate jellyfish, before moving in and shredding them in its propeller.
The design ensures only jellyfish (and perhaps very small fish!) can be drawn into the propeller. JAROS are able to communicate with each other to allow them to move in formation.
Aside from posing a danger to swimmers, jellyfish accidents and fishing losses are adding up to over 300 billion won per year, or roughly 27 billion dollars, according to Koreas Advanced Institute of Science and Technology, who developed the bots.