The distribution of catfish in China is very extensive. There are wild species of catfish, and they can also be cultured artificially. Some characteristics of catfish are very prominent, such as their scales are reduced, the body surface has mucus; For example, they have whiskers and so on. When observing catfish, their beard is very obvious, which is obviously different from other fish, and can be used as the main distinguishing feature of catfish. Specifically, the whiskers of different catfish species are also different, but they generally have whiskers, and whiskers can play an important role in their various life activities.
As mentioned above, catfish grow whiskers, and catfish whiskers are one of their remarkable characteristics. Specifically, there are four common catfish whiskers, of which the upper two are relatively long and the lower two are relatively short. Of course, there are many different species of catfish, and the number of catfish whiskers in these species may vary, for example, some species have more whiskers, maybe eight.
The role of catfish whiskers is very important, if there is no beard, they will not be able to complete all life activities. Because catfish's eyes are very small, and their vision has deteriorated, they can hardly see clearly, so they can only use their whiskers to detect food around them and hunt after finding prey. In fact, catfish itself lives at the bottom of the waters, where the light is not good, vision can not play a big role, must rely on beard can. In addition, with the help of whiskers, catfish can predict the dangers around them and avoid the enemies around them.
