Sometimes, you really wish that researchers could be punished by having to pay back all their grant money.
This is such a "No shit, Sherlock" result. I suggest that most mammals have sufficient reasoning power to work out that one thing leads to another, and that a box which makes a noise might be of interest. Any animal will be curious about a silly human waving something around - after all, instinct tells them it may contain food!
You could repeat the same experiment with new-born babies, and would probably see similar results, but I doubt anyone would try to extrapolate from that that the infants have a deep understanding of physics.
Biting the hand that feeds IT
