An artificial analogue of the sucker of a sticky fish. Free Technical Library News

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Artificial analogue of the sucker of a fish-stick

28.09.2017

Experts have developed a new suction device that will attach to sharks and dolphins and must withstand the animals' high speeds and sharp turns. It is interesting that the sucker organ of the sticky fish served as a model for its creation.

Tracking sharks or dolphins (in order to study their lifestyle) is not so easy. This requires attaching sensors to animals that can work underwater and withstand high speeds, sharp turns, etc.

To solve this problem, researchers in China and the US have developed a suction cup that attaches to smooth skin, can work underwater and withstand sudden movements. At the same time, as a model for the device, scientists used the organ-sucker of a fish-stick.

Sticks are fish that have a huge sucker instead of a front dorsal fin, which they use to cling to whales, sharks and turtles. Sticky fish can withstand even the highest speeds, sharp turns and not unhook.

Designed like a sticky suction cup, the device has a huge soft rubber suction cup, as well as hundreds of small hard protrusions arranged in a row. Sticks have the same ones - fish can change them to achieve the necessary friction.

In tests, the device could hold onto a variety of smooth and rough surfaces underwater, including shark skin. The next step is to test the device on real sharks and dolphins.

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