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Guess, can fish speak?
Some can. In most people's cognition, fish can't make sound. In fact, many fish living in water can make sounds, but the vocal organs are not fixed. The swim bladder is the most common one. Usually, when they are attacked, they will make noises to scare their enemies, and they will also make noises when courting, mainly because males make noises to attract females.

Different fish make different sounds, but their functions are basically the same. The flatfin American toad fish can make a motorcycle-like sound, the African cichlid fish can make a sound by shaking its body and tail, and the colorful goby fish can sing when it finds a female, mainly by inflating the swim bladder. Fish can beat it with muscles, rub it with muscles, and squeeze air from half of the swim bladder into the other half with muscles to make a sound.

In most people's cognition, fish can't make sound. In fact, many fish that live in water make sounds. Fish can make sounds mainly by the air-filled swim bladder. Fish can beat it with muscles, rub it with muscles, and squeeze air from half of the swim bladder into the other half with muscles to make a sound.

In order to find out whether fish sounds are rare or common. Researchers have studied radial fin fish, which accounts for 99% of the known fish species in the world and can provide a very wide range of materials.

To this end, the researchers first looked at the papers and recordings describing fish calls, and then looked for reference materials about fish calls before the invention of underwater microphones.

Most importantly, the researchers have made a detailed study of the anatomical structure of various radial fin fish, including muscles with specific sounds, airbags and unique bones.

Finally, the researchers found that about 175 species of radial fin fish are using or will use sound to communicate. This 175 species of radial fin fish accounts for about two-thirds of all fish. Researchers say that these sounds made by fish Otawa can attract spouses, guard food sources and territories, or announce their location. In addition, by studying the genealogy of fish, they found that sound is very important to fish, and there have been at least 33 separate evolutions in millions of years.

Andrew Bass, a professor of biology and behaviorism, said that the previous research on fish sounds mainly focused on whales and dolphins, thus ignoring that other fish also have voice communication.

The researchers said that in the next step, they intend to continue to track the sound made by this fish and add it to the database. (Excerpted from Science Fiction Network)