Scientists explain how wombats drop cubed feces. How do wombats produce cube-shaped feces? Scientists have investigated the hydrodynamics of fluids, including blood, processed food and urine, in the bodies of animals. She was curious how the differences in wombats' digestive processes and soft tissue structures might explain their oddly shaped scat. Source 7d.
Interesting, I did not realize this was a thing. I can see how discovering the process could improve speeds in industrial food processing by skipping the need for trays or molds in say cheese making or baking.