This is a CT scan of a remotely controlled mechanical dog toy. The dog wags its tail, walks, and barks while opening its mouth. The motor mechanism can be clearly visualized within the dogs body. Levers to wag the tail and move the head are readily apparent as is the motor in the region just caudal to the stomach would be in a real dog. The wisp of wire exiting from the dog's back is the wire to the remote control.