Parkour, also known as free-walking, is damn impressive to watch when done right. Videos on YouTube get tens of millions of views as free-walkers bravely leap between rooftops, over fences, along walls or up trees—anywhere two feet and a firm grip can get you. The goal is to get from one point to another in the most elegant way possible, even if that second point is 20 feet up a building facade, or blocked by errant construction materials.
Well, free-walking is not just for humans anymore. Meet Tret, the parkour dog. Two extra feet are a big asset it seems. That is one well trained animal.