Did you know that Wombats poop cubes?
Lest you think someone had to place this scat in this nice neat pile I will let you know that the Wombat did this itself. Wombat's mark their territory this way. Cubes come in handy when leaving droppings in peculiar places like the top of a log. Imagine how confusing the territories would get if the fences (in this case the poo) kept rolling around.
I also have to laugh at the beautiful way in which the photographer framed this particular subject. If not for the pile it would be quite picturesque.