Yes, this is an artificial fish. Who remembers Blade Runner?
Engineers at the University of Kitakyushu have developed an underwater survey robot that looks good enough to eat. “Tai-robot-kun,” a 7-kilogram (15.4 lb) robotic sea bream (red snapper) with a silicone body covered in realistically hand-painted scales, features a unique propulsion system that allows it to move its tail and drift silently through the water like a real fish.
“Not feesh scale… Snaaaake scale.”