Japanese scientists have just refreshed the previous study of penguin stool dynamics, focusing on maximum shooting distance and maximum pressure. Penguins are known to be able to “fire shells” from 4.5 feet (about 1.4 meters) near their nests, sometimes even allowing excrement to be fired along the rising trajectory. In 2005, a “How the Penguins Defecate?” The paper even won the funny Nobel Prize in FluidScience.
(Pictured from: H. Tajima)
In fact, earlier in 2003, there was a paper that focused on the pressures of penguin defense. New research by Japanese scientists adds to this, proving that penguins are better able to “spray” than previously thought.
Before the little penguins hatched, the penguin dads were quite dutiful. No matter how bad the weather is, they hardly waste a second solving the problem of defecation. Instead, tilt the buttocks slightly and fire liquid excrement directly in place.
The Cannon has the power to fire feces far enough away. But the little buddy who has seen the documentary may be impressed by the other hapless penguins who are “beaten up”.
Study illustration (from: Arxiv)
The new study is a new reflection on the 2003 discovery, which was based on the original paper’s assumption that penguins always emit excreta horizontally, but that is not the case. Some penguins seem to have worked harder, creating a slightly upward launch angle.
In addition, at some times, penguins’ nests are located in higher positions and the excretion is much larger than when they are shot flat. So, through a recalculation, it can be seen that the penguin’s cannon can reach a distance of 4.39 feet (about 1.34 meters).
In addition, in order to allow the excreta to fly farther than ever before, the researchers decided to recalculate the higher pressures that penguins had to bear. For zookeepers, an in-depth understanding of their habits can also make visitors feel “safer.”