Catfish has a long body with rounded front, compressed laterally, and with a rear-naked with a large number of mucous glands and soft skin. Large fish head compressed, the eyes are small and close to the occipital part.
The catfish has a big mouth. the lower jaw exceeds the upper in length and slightly curled up. On the jaws there is a huge amount metkovich teeth. Is a pair of long whiskers on the upper lip, two pairs of short – on the chin.
Body colour black catfish on your back turns into dirty white on the belly. There is a small feature, the slower the flow in the habitat of the fish, the darker its color.
Another characteristic feature of the soma can be called the dorsal fin. It is very short and rather strongly shifted to the head. In most reservoirs the size of the fish up to five feet in length with a weight up to fifty pounds.
The soma area in Russia serve as basins of the Neva (Ladoga, Ilmenite and lake Onega), Kuban, Dnieper, Terek, don, Ural and Volga. This fish cannot be found in Levitanovskoy the pool and in the upper reaches of the rivers. Continue reading
Sharks were returning to the Adriatic sea. Moreover, populations of predators are increasingly encountered in the North, where the sharks never swam. This fact can not please scientists who earlier raised the alarm about the disappearance of sharks from the Adriatic, but can alert tourists – after all, they both have to face with marine life.
About the encounter with the shark in the Northern Adriatic sea the Austrian Times newspaper said a resident of Austria günther Rath, who along with his friend owns a diving school on the Croatian island of Krk.
However, a collision with a shark Rata has left only positive emotions. “It was just amazing. I am now one of the few divers who met with the shark. I was waiting for this meeting,” describes his emotions Rath.
According to him, the meeting took place last week, when he dived with his colleague. “We approached the shark and watched it within seven minutes. This is enough to have time to take pictures,” said RAHT, Austrian Times, showing the pictures. “Neither we nor the animal didn’t panic. Then the shark swam away”, he added. Continue reading
Shark – the largest and most dangerous predator of the red sea, this sea has about 30 shark species, 2nd most dangerous is the tiger shark that attacks people and long-winged shark. Not arguing that and even have the great white shark the most dangerous shark in the world, but evidence of this until no. Maybe someone has specifically allowed such gossip to scare people. No need to fear, these sharks are current in the open sea, and near the shores they don’t float.
Look how many people every day stay in Egypt and they do not attack sharks. However in 2010 there was a case when a shark attacked 4 tourists, but these sharks were caught and killed (so claim the Egyptian authorities). Why did it happen? Explanations were that some ship dumped a batch of spoiled meat in the sea, sharks eat it sailed to shore, feeling the smell of this ship.
In 2011, all is quiet and there was not a single attack, so the shark in the red sea is not so dangerous, many species are not generally a threat to humans. Continue reading