People against superrats. Who whom?
of the Rat cause extensive damage to the person. In the USA, for example, rats annually attack people. Small children and old men become their victims. The quantity of bitten is estimated in thousands. Because of rats - fans to have a snack on isolation of an electrical wiring - there are numerous fires. Losses from rodents are estimated in billions of dollars.
Rats are omnivorous and devour everything that catches sight to them, they are also capable to live and survive in any conditions. For example, the gray rat in Arizona (in the south of the USA) lives in holes, in Europe its favourite place - cellars, attics, refuse chutes. On the Pacific coast they with big hunting live on coconut palm trees where “both a table, and the house“ in one place. What is interesting, many generations of inhabitants of palm trees do not go down on the earth at all.
I found curious information on how rats diversify the table. In the State of West Virginia workers of a rybopitomnik with surprise observed how rats dive for molodyyu trout. Every time “fishing“ was successful, and the next small fish disappeared in a rat mouth.
How to escape from a rat misfortune? Scientists came to the advanced boundaries in fight against rats. In the laboratories they developed poisons - anticoagulants which cause the internal bleedings leading to death. At first natural anticoagulant - dikumarol from plants was received. In 1948 the synthetic preparation varfarin appeared. It specially intended for rodents and was almost safe for other animals.
But rats were “not a bast boards“. They well developed the sixth sense: they in panic are afraid of any poisons and possess the increased intuition, in some way distinguishing killing food with a poison. If the rat felt something wrong, she will remain hungry better, but even her trust will never touch an appetitnomukusk, not defiant. It was noticed that rats carefully treat all new, whether it be a situation or suspicious food. If the familiar pebble “removed“ on other place, or there was a new unclear subject (trap), rats will disappear for several days until the situation clears up.
Speaking about effect of poisons on rats, it must be kept in mind that if the rat tried the poisoned bait and after that survived, then the next generations will be less subject to effect of this poison. In Russia there is to that a good example. In 40 - x years of the last century in Moscow poisons were applied to fight against rats very effectively. But 60 - 70 years later their application did not yield result. For several decades at rats immunity was developed.
In an arsenal of people there are also other types of the military weapon against rats. For example, a surface - the trap is greased strongly with adhesive and if the rat gets on “flypaper“, then it forever remains on it. High-frequency sound generators frighten off rats from housing. There are automated supermousetraps: they clamp the victim steel jaws, then on them the electric discharge moves, and the rat then killed is packed into a plastic package. Almost the conveyor on extermination of rats turns out.
In laboratories of many countries work with superrats is continued. They look as ordinary rodents from the next garbage can. However this line of rats developed adaptation to poisons - to anticoagulants. Property is fixed at them at the genetic level and passes from father to son. Some copies can use a poison dose which would be enough to kill one hundred ordinary rats, and nothing happens to these.
Descendants of rodents whom biologists brought together on the atoll Enivetok also treat superrats. Scientists of the American laboratory within 40 years cultivate these rats whose ancestors managed to survive at a lethal dose of radiation.
So who whom will overcome in unsolemn war of people against rats? To answer this question not easy. The person is inventive: it on service has a science and clever cars. The opponent - little fluffy small animals who master new habitats and new power supplies. They possess huge fertility and can adapt to the most unexpected destructive factors of the environment.
Rats have big ecological plasticity , to them they keep change of factors of environment in the widest range, at the same time normal activity steadily at all.
However, the difficult opponent got to the person …