This is an art project by a chap called Seth Weiner. It's a vehicle called Terranaut II.
This intriguing little vessel is driven by the motions of a parrot cichlid in a fish bowl. A camera mounted above the tank tracks the fish's movement and relays that information to a computer, which then drives the robot in the direction the fish was traveling. With this contraption, Polly the Parrot (fish) is capable of exploring land in a way he never dreamed possible. Polly does appear to just go around in circle though, which may have something to do with his bowl being round and him having bog-all long term memory.
This is insane. As my collegue BubbaFett pointed out "...a set of robotic arms and fish could become our overlords!". Surely this is the beginning of the end.