The CIA's Charlie is a real robot spy fish.
Built in the 1990s, this 24-inch robotic catfish carried a pressure hull, ballast system, and communications system.
It collected water samples for nuclear and biochemical testing.

The CIA's Charlie is a real robot spy fish.
Built in the 1990s, this 24-inch robotic catfish carried a pressure hull, ballast system, and communications system.
It collected water samples for nuclear and biochemical testing.