That opened the scientists created a furor in the science ... This fish - a real biological phenomenon! Bashny.Net

It turns out, birds and mammals - are not the only warm-blooded creatures in the world. Ladies and gentlemen, meet it opah, or as it is called, the moon or sunfish. At first glance, there is nothing special. But in actual fact this skromnyaga created a furore in the world of science. The fact that it is the only currently known warm-blooded fish on our planet with you.

Most fish in the world - exotherm. That is, to maintain the body temperature, they require a warm environment. Body temperature opahov about 5 ° C above ambient temperature, while the remaining fish body temperature coincides with the temperature of water. Probably, this fact does not cause you any emotion. But that's only because you feel about the mammals, and the regulation of body temperature for you - a self-evident process, of which you have never even thought about.



In the world there are few fish that can independently maintain body temperature. The record in thermoregulation among tuna fish is a striped body temperature 27-28 ° C at a depth of 1 km, where the water temperature is usually up to only 5 ° C. However, the tuna is able to maintain a high temperature in a striated muscle, while his internal organs very quickly cooled. Body opaha support may not such a high temperature, but the heat had distributed evenly throughout the body.

The first doubts about the cold-blooded opaha biologists emerged during the study of the gill samples. The gills of the fish lunar vessels that carry blood from the warm exhaust oxygen from the body in contact with the vessels that carry cold blood oxygen saturation from the gills. It turns out that the exhaust heats the incoming blood. This procedure is called the countercurrent heat exchange. In fish, this process is observed for the first time.



Opahi live in oceans around the world. On the part of these fish it looks pretty innocuous, but in fact the sun fish - even those predators. B>



Well, next time, when you're lucky enough to have a rest at the ocean coast, and you come across a representative of the warm-blooded fish, remember that you just had to watch a real biological phenomenon.

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