On the surface of the Atlantic, Pacific and Indian Oceans, people passing by by boat will sometimes suddenly see a school of silvery fish shooting up from the sea. There are hundreds of them gathered together that can launch into the air a few meters above the water surface and then fly a few dozen meters, even over a hundred meters.
This flying fish is called flying fish. Why can flying fish fly?
The flying fish has a very solid body, the pectoral fins are very long, located close to the sides of the body, the lower tail fin is longer than the upper one, this structure of the fin helps the flying fish have all the conditions to fly.
Before the flying fish flies up, it first swings its pectoral fins and fangs its tail strongly to the sides, increasing its swimming speed to the fastest. Then, based on the lift created by the pectoral fins and the forward thrust created by the tail fin, it launches out of the water.
When the flying fish leaps strongly out of the water, its large front fins spread out like a bird, creating a lift that lifts it out of the water and gives it momentum to fly a little further. In essence, flying fish cannot fly, it can only glide .