Close-up of fish used 'water gun' shot down prey from 3 meters

Adult archerfish have the ability to accurately locate and use their mouths to shoot extremely powerful water streams, causing the prey to fall to the water from a height of 3 meters.

The basket fish is one of the seven species of fish belonging to the Toxotes smart fish, capable of spraying water from the mouth into prey with great accuracy and fast speed.Thanks to this ability, fish shoots are also called archery fish.

According to scientists, the basa fish can locate the prey on the water even more accurately than in the water.It only took about 1/10 second after hitting the water stream into the prey, the basketfish could determine the position where the prey would fall on the water to quickly swallow.

Surprisingly, this creature also has the ability to "calculate" the effect of gravity to bend the spray water line to fall on the prey.For example, if the prey is located at a position of 10 cm above the water surface, the shoots will shoot a 30 cm high water flow so that the water can bend down from 2 - 15 cm.This is a way of spraying water no different from calculating the wrong number of a gunner.

The flow of water sprayed by the basket fish is not a continuous flow but a beam with water droplets but the wave force is strong.

In order to shoot a strong and high bow, the erupting water flow has a faster and stronger speed than the upper part.

In this way, physicists at the University of Milan believe that the water sprayed out by basketfish can produce five times more force than the muscular force of vertebrates.

The image simulates the ability to "calculate" the wrong number of basketfish to hit the prey target.

Backed fish have lived in many seas around the world, including in some waters in Southeast Asia.Schuster, a physicist at Bayreuth University (Germany), said that the basa fish can change the long-held thinking about the intelligence of marine creatures.