Do you think you know everything about fish? Think about it! We constantly discover the wonders of the ocean and unceasingly discover new species of fish. It seems that our knowledge of the fishing world is only scratching the surface.
But what we know is really interesting! Here we have compiled some strange, wild and fascinating facts about the fish we have encountered. Do not hesitate to use this information to surprise your friends!
1) They like to play.
The researchers found that even fish like to be entertained. They saw fish playing with thermometers at the bottom of the aquariums and saw octopuses repeatedly throwing toy balls under the water and making them move quickly to watch them float. And see how beautiful the fish is!
2) They make noises.
For a long time, scientists have speculated that the lack of external fish spikes makes them deaf. Now we know they can hear well. Some species may feel even better than us. And not only can they hear the noise, but they do it too. Fish can grunt, bark, click, buzz, whistle, and croak. Some fish are so strong that you can hear them on the ground.
3) They communicate
Fish use a variety of sounds to communicate with each other. They moan, growl, growl, sing, hiss, whistle, break, explode, scream and howl. Some people also collide with the bones and shake. These sounds are used for a variety of things, such as attracting friends, scaring fish, threatening predators and being guided.
4) Use tools.
Not only primates and birds use tools; We have seen this behavior of many species of fish. We have seen some types of Neapolitan rocks that use rocks to crush bunches so they can eat their offerings indoors, and we’ve also seen cichlid eggs and catfish stuck to leaves and small stones they remove when their nests are disturbed. At least 9,000 fish species build a nest for nests or shelters. The materials, the shape and the function of the nests vary enormously.
5) They are smart
It was difficult to recognize the intelligence of creatures very different from us, but the more we learn about the fish, the more we realize how truly intelligent it is. The fish showed the “Machiavellian intelligence” the ability to manipulate the behavior of others by deceiving or reconciling them. For example, the bat plays to death when the danger is near, it floats without movement when it is afraid, which makes it look like a dead leaf floating on the surface of the water. Cleaner fish that eat dead skin and other pests use a process of reconciliation when they accidentally bite their food transporters. It is said that they often rub against their customers to make up for this mistake. There is also convincing evidence that the fish is able to identify itself with chemical signals, perceived as a sign of intelligence.
6) The oldest koi carp ever recorded reached 226 years old.
Hanako was a female koi carp that lived on a Japanese lake for over two centuries (13). Born in 1751, Hanako (which means “woman’s blossom”) was passed down from several generations of the same family. When she died in 1977, she was examined for age using growth rings found on her scale.
Hanako was still an eye compared to a sea mollusk discovered posthumously in 2006. Scientists have estimated his age at 507 years. He was named Ming in honor of the Chinese dynasty that was in power at birth in 1499 (13).
7) Goldfish can be trained
Ready for some myths? Although goldfish have been used almost like a token of forgetfulness for decades, scientists have discovered that they can remember things for up to five months and even be trained to associate certain food sounds (5).