Walk around a forest in Canada and you can’t miss the precise piles of round animal poop: Deer, moose, and rabbits. But there is one animal in the world (that we know of) that poops in cubes and it’s a wombat. How does the Tasmanian mammal do that? Yes, serious researchers want to know. A team from the University of Tasmania has determined that a wombat’s surprisingly long and intermittently stretchy intestines compress their poop (or stool) into cubes. David Hu, professor in the George W. Woodruff School of Mechanical Engineering and the School of Biological Sciences, worked on the wombat research with the University of Tasmania.