Of all the many mysteries surrounding the common womb, it is difficult to find it as confusing, because its ability – widely recognized as unique in the natural world – the creation of faeces in the form of a cube.
Why great shots could benefit from a six-member fecal, they generally agree: the waves mark their territorial boundaries with scented piles as much as possible. With shapes shaped like wolves, waves increase the chances of dropping out, deposited near the front door, prominent walls, raised floors and diaries, will not give up. That's at least thinking.
But, just like animals produce unpleasant blocks – and can go up to 100 a night, probably with something disturbing – turned out to become more and more difficult things. Scientists who worried about the phenomenon made little progress, except that they excluded the suspicion that the animals had square anus.
"My curiosity started when I realized that there are cubical faeces," said Patricia Iang, a postdoctoral engineer at the Georgia Institute of Technology in Atlanta. "I thought it was not the right place in the first place."
In a new study, Yang and her colleagues had a fresh problem on the issue. In order to gain a new insight into the mystery, they studied the digestive areas of common wolves that were euthanized after they were driven by cars and trucks on roads in Tasmania.
A close inspection revealed that the womens' secretion was fixed in the last 8% of the intestine, where the faeces were built in the form of blocks of size of long and smooth sugar cubes. By emptying the gut and inflating them with long modeling balloons, which were used to produce balloon animals in the children's parties, the researchers measured how the tissue developed in different places.
In a paper that will be presented at a meeting of the American Physical Association on Fluid Dynamics in Georgia, the team explains that the last part of the womb hose is not pushed evenly, unlike the rest of the bowel. When measured around the circumference, some parts give more than others. This allows the tubes to deform in such a way that the packets are poured into cubes of 2cm width, and not the usual form of sausage. The findings were excited by tests on the hoses of pigs that did not detect such irregularities in how they stretched.
"Womb hoses have periodic stiffness, which means solid-soft-solid-soft, along the circumference to form cubic mud," Yang said.
But researchers have yet to complete the job. In order to produce a poo with a square cross-section, the hose volume will require four shooting areas divided by four rigid areas. In this way, the rigid regions form the sides, and the highlighting parts allow the formation of angles. Balloon tests revealed only three firing pieces and two firmer ones. In the forthcoming article, scientists suggest that other rigid and stretched parts can become apparent only if they can inflate the intestines to a larger size. In other words, it's a little harder to strain.
Iang believes that detection will have implications beyond the small community of researchers who acknowledge interest in wombat scat. Today, engineers have only two ways to make cubes: either to shape or cut them, she says. Wombat hose suggests it is possible for the third time. "It would be a cool way to apply it to the production process," she said.
"We can learn from vombats and we hope that this new method will be applied to our production process. We can understand how to do it in a very efficient way."