You know the old saying, "Build a better mouse trap...". Well, this NXT Mouse Trap tries to continue in the tradition of the classic spring mouse trap, by snapping closed when the mouse steps on the plate with the bait on it. But having a motor and NXT brain, this improved trap can automatically reset itself if it misses or if the mouse escapes. Maybe you will think of something better still, using more sensors, or maybe using an entirely different strategy...
Here is a video of the trap in action: