When the owner purchased the treadmill and brought it home, he did not expect such reaction of cats. They were so astonished by moving ground and surely wanted to explore how this thing works. The strange machine captivated their attention. They could not figure out its secret and this was so intrguing. The owner installed the camera and recorded this funny film. What kitties did to investigate the treadmill was mind-blowing! I laughed till I cried, so hilarious!