Tooth-shaped fins help the shark to spin quickly underwater

The sight of an angry shark with a sharp fanged jaw is enough to cause fear for other species.

Illustration. (Internet source)

However, US researchers have discovered that teeth-like fins on their skin can help them spin quickly underwater.

The findings of researchers at the University of South Florida and the University of Alabama show that these flexible fins ' make them better hunters by allowing them to change directions while moving at speed. max. '

Presenters of the findings made by his team in the American Natural Society section of the fluid dynamics annual meeting in Long Beach, California, researcher Amy Lang of the University of Alabama said This fin controls water flowing through the shark's body.

Mrs. Amy said: ' In nature, if you look at the appearance of animals, you will see that they are not smooth. They have ripples to control speed - such as ripples on a golf ball that help it fly farther . ' Therefore, ' we believe that shark's fins are used for the same purpose - controlling water displacement .'

According to the study, the conical structure makes these fins capable of easily turning around angles of 60 degrees or more.

Interestingly, these fins are only found in water turns or the same way that fluids move around dynamic subjects by approaching this subject first and then separating it from the next object.

Ms. Amy also said that ' in further study, we envision applications in line control in the design of aircraft, helicopters and wind turbines. "