Wombats Poop in Cubes and Science Still Isn't Over It
Meet the wombat: a chunky, burrowing marsupial from Australia that looks like a teddy bear had a very serious argument with a boulder. Wombats are beloved for their sturdy build, their surprisingly speedy waddle, and one deeply specific superpower — they poop in cubes.
No, really. Each wombat produces around 80 to 100 cube-shaped droppings per night. The cubes measure roughly two centimeters on each side, and wombats strategically place them on rocks and logs to mark their territory. Apparently, cube-shaped poop stacks better than round poop, which is either genius-level evolutionary thinking or the most chaotic fact you will learn this week.
For years, scientists were genuinely stumped. A cube coming out of a circular digestive tract seems to defy basic geometry. Then, in 2019, a team of researchers who won an Ig Nobel Prize for their trouble discovered the answer: the walls of a wombat's intestine have varying elasticity. Two stiff regions and two stretchy regions work like a natural mold, shaping the waste into tidy little blocks during the final stages of digestion.
It is a reminder that nature is wildly inventive — and that sometimes the strangest engineering problems have been quietly solved by a marsupial that just really likes to keep its territory organized.
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