Even the darkest of all dark unicorns are graceful, beautiful creatures. Most are very agile and swift, particularly water unicorns, such as the Straighthorn. These unicorns use movement to express themselves in a complex way, so we just figure it is them dancing. Like we have mentioned, the Straighthorns are known very well for being very agile, and that is also how they spend most of their time. Make the jump to read more!
A lot of the common unicorns such as Ruvas and Magicorns, and even some dark unicorns are big and clumsy or aren't interested in the art. As I'm sure you are imagining, it is hard for a creature with the body of a horse to dance, witch is why you have to be very powerful to be good at it, and it requires a lot of focus for them. Unfortunately, no one has ever been lucky enough to witnis this...