When it does hit the fan, there’s a lot of it

Scientists use the mathematical model of defecation and a deflated balloon to decode the mystery behind cube-shaped faeces produced by wombats

The less elastic nature of the final stretch of intestine gives edges to the faeces just before the wombat defecates. Presto: cubic faeces.

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It had to happen, I suppose, and I get the feeling you’ve been waiting for it. There is now a mathematical model of defecation. But hold it in for a moment. The research that produced that model follows in the footsteps of a Law of Urination, which...

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