From the paper [1] >Flow rate was slowed significantly more when the two funnel-shaped spiral intestines were subjected to flow in the posterior to anterior di

From the paper [1] >Flow rate was slowed significantly more when the two funnel-shaped spiral intestines were subjected to flow in the posterior to anterior direction, indicating their success at producing unidirectional flow, similar to a Tesla valve. [1] https://royalsocietypublishing.org/doi/10.1098/rspb.2021.1359 https://royalsocietypublishing.org/doi/10.1098/rspb.2021.135...