That ’s a legitimate scientific question . Multiple team of investigator have wondered how the yellow boxfish manages to swim when it looks like someone bind fins to a square block of cheese . regain out how this matter moves .
If you ’re wondering how this tiny , brilliant , square block - shaped fish does n’t end up becoming the bite of every other fish on the Witwatersrand , the solution is simple . The Pisces , when under stress , excrete so much poisonthat it can kill not only the Pisces that eats it , but any fish that even come near it . But it also has to feed itself , and that must be a challenge for something so clumsy .
For a while , it looked like this fish had the ultimate way to get around . Not only did the cube - ishness reduce on drag , claimed the Mercedes - Benz engineers whodesigned a car based on the fish , but the box shape create petty vortices which allow the fish to stabilize itself in the water . When the Pisces the Fishes got tilted off course of action a vortex would be created around the sharpness of its case ( and its bod is due to a shell , not weirdly - cubic flesh ) , and the vortex would push it back into place .
Turns out , that was incorrect . Engineers made 3 - D impress models of the Pisces the Fishes and found that it not only has far more drag than other fish as it swim , it ’s very unsound . It always gets wriggle and twist as it float , and that ’s a good affair . According to the paper they wrote on the subject , “ destabilizing moments enhance maneuverability , which is in accordance of rights with the bionomical requirement for efficient turning and tilting . ”
In other words , this fish uses its unstable swim to change by reversal more well . And when it really needs to keep itself to a straight line ? That ’s what its quintet are for .
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