Startling the 'fish growing fur' makes the science world 'headache'?

The hairy fish like animals make the scientists "headaches" and not yet able to find the exact cause.

Not long ago, a 41-year-old man in the US caught a hairy fish living in Lake Michigan in the Wisconsin area. This strange fish minus the output, the whole body grows white hair like a rabbit.

In fact, this is not the first time there has been a record of the appearance of this hairy fish. In the 17th century, an immigrant from Scotland to the United States once wrote in the letter: 'This new land has a lot of fish growing on the body'. Later, the content of this letter was well known and they named this hairy fish called Fur Bearing Trout .

If the fish is really hairy, that's not really a good thing.

There has been a theory that North America is a very cold area, especially the lake and river areas where water often has frost, leading to the development of salmon with thick fur to keep the body temperature stable. Others argue that the government sprays some chemicals to restore algae and moss in the lakes, which leads to salmon growing on the body.

There have been many zoologists around the world conducting research on hairy fish for decades. In theory, salmon cannot grow feathers, but in fact, if there are really hairy fish, that's not really a good thing. Because that hair does not help them warmer in cold environments, it also reduces their swimming speed, causing them to waste a large amount of energy.

Many scientists believe that some species of bacteria and molds grow in the body of salmon and grow out like cilia on the body. After the fungi and bacteria grow throughout the salmon body, they become heavily poisoned and die, then drift to the shore and make many people think they have feathers.

It is unclear exactly what causes some fish to grow fur like animals but it is clear that the image of strange fish still makes people curious.