terranaut
Here is the vehicle that is power-driven by a fish. Hmm...surprised. Well, the Seth Weiner’s art project is all about a vehicle named Terranaut that moves along with the motion of a Blood Parrot fish that is kept in the fish bowl or the cockpit.

How it works?
A camera is kept at the top of the fish tank that sends the fish’s movement info to a computer that makes the robot to move into the direction the fish is making its way. Two drive wheels motorized by its own Servometer power the unique Terranaut. Here is the video of the appealing vehicle in action.

Via: NewLaunches