The US Navy has a new spy drone that looks and swims like a fish. It was created under the Silent NEMO project and is dubbed 'GhostSwimmer'. The spy drone is 5 feet long and weighs 100 pounds. It has been developed by the chief of naval operations' Rapid Innovation (CRIC).
It has been designed to resemble an albacore tuna but can be remotely controlled with a laptop to move through the water just like a real fish.