Japan is a country which one could fairly describe as being obsessed with robots, and obsessed with seafood. So perhaps it's only natural that artist and educator Masamichi Hayashi has combined the two great national passions by making robot fish.
He isn't the first to dabble in pisciform cybernetics. Nekton Research has been doing the same for years now, and is now part of the growing iRobot empire. Their fishbots even incorporate the same mechanical methods used by real fish.
There's an obvious end point to this: an International Battle of the Robot Fish!