That's pretty excellent. For those who don't watch the videos, they feature a feeding device that must be spun to release food. Video 2 features the pig figuring out that spinning the wheel releases food, and by the last video, the pig is spinning the wheel numerous times to release several food drops before eating.
I was waiting for the pig to push all the balls out of the frame so that it could spin the feeding wheel without rooting through the balls.
The following videos of my pig demonstrate this.
Video 2: Pig is first learning the task.
Video 3: Pig has slightly optimized the task.
Video 1: Pig has mastered the task.
https://www.dropbox.com/sh/37f48azh2bt4xk4/Wy3iHDMp1e?previe...