Yesterday morning, I spotted the cat stalking a box turtle of some sort. It was wandering through the side yard and the cat was stalking it at a close, but not too close distance. As the cat hadn't pounced, I assume that it already knew that hunting turtles was impossible. It wasn't getting through that shell. The turtle would take a few steps and stop, and so would the cat. Eventually the cat just watched as the turtle galumphed across the side yard, towards the fence.