This is one smart turtle, and one patient man.

The following links to a nearly-5-minute video showcasing this three-toed box turtle's talents. It is by far the most complete of the videos I found, though I don't like this link because, well, let's just say that this site makes me happy my local paper moderates its reader comments. Anyway, here it is:

Man Trains Turtle To Do Tricks

Here is another link to an edited version, and this one has an interesting voiceover commentary (and gives more information about how the man uses Florida in therapy for kids):

Trained Turtle

And here's a nice little written story: Turtle tricks