Not everything that swims is biological anymore researchers are creating believe it or not robotic fish.
In recent months teams at the Massachusetts Institute of Technology (MIT) and the University of Essex in England have unveiled competing designs for robotic fish. The purpose of these robot fish is not clear,
It should be noted that MIT does a lot of defense related research so the real goal may be to create a next generation torpedo that thinks for itself. Such robot fish would be perfect underwater spies and could be used to seek out and destroy enemy ships and submarines.
One advantage robot fish would have over traditional torpedoes is that they could swim up streams to attack enemy forces inland. Robot fish could also be airdropped into lakes and rivers to attack enemy fighters. An underwater variation of the Predator drones that the CIA is using in its attempts to track down and kill Al Qaeda terrorists in Pakistan.
Robot fish could be the weapon of the future. One wonders how long it will take this technology to fall into the hands of the bad guys.