Its name is Capernicus (often pronounced Caper Knickers), and it can dance, of course. And do tricks, sometimes (okay, once) involving the mayor of a Hungarian town. And it gives children rides.
Sometimes, the horse is a cow. Different body, very similar legs. We call our cow Pat. Our Cow Pat does exactly what the horse does, with added udders. It produces much amusement, and we know how to milk it (actually, we really do).
We can’t really explain what they do. When you’ve seen it, you won’t be able to explain it either. Best just to watch the videos (click on the images):
