As another commenter pointed out, this needs a (2018) in the title. More recent results continued to find out more, looking if the anus shape plays a role [0].

As another commenter pointed out, this needs a (2018) in the title. More recent results continued to find out more, looking if the anus shape plays a role [0]. [0] https://arstechnica.com/science/2021/01/its-the-wombats-strange-intestines-not-its-anus-that-produces-cubed-poo/ https://arstechnica.com/science/2021/01/its-the-wombats-stra...