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1. What is rat?
A rat is any one of about 56 different species of small, nearly omnivorous rodents belonging to the genus Rattus. The most well known species are the Black Rat (Rattus rattus) and the Brown Rat (Rattus norvegicus). The group is generally known as the old world rats or true rats, and originated in Asia.

2. What is fancy rat?
In Western countries, many people keep domosticated rats as pets. There are of the species Rattus norvegicus, which orginated in the glasslands of China and spread to Europe and eventually. In 1775 to the New World. Pets rats are descendants of Brown Rats bred for research and may be call fancy rats. But they are same species as the common city sewer rat.

3. What are Rats in culture?
In imperial Chinese culture, the rat (sometimes referred to as a mouse) is the first of the twelve animals of the Chinese zodiac. Consequently every twelfth year is known as a "year of the rat" in the Chinese calaendar.

4. How do rats spread disease?
One route is via rat urine and faces, especially as it falls out of the roof grain stores at night. Rat waste literally rains down on people while they sleep - it gets into the water and the food. Another route is through bites. Rats running round the house will often bite if they smell food on a sleeping human's hands or face.

5. What kind of diseases cause by rats?
The disease they pass on in bites and urine can cause anything from leptospirosis to rat bite fever adn gangrene. Rats are perhaps best known for having transported Bubonic plague round the world.

6, What problem did rat cause in the world?
Rats are the most nemerous and widespread of all mammals. Nobady knows how many there are in the world, but it probably runs into billions. They live in rural and urban areas, in fields and houses and barns -- anywhere there is food. And they eat almost anything. Even a country as "developed" as Britain recently discovered that is had as many rats as people. In many parts of the world, they are an everyday menace, eating crops and stores of food, biting people as they sleep and spreading diseases. But many problems could be sloved, says the NRI's rat expert Steve Belmain, in the simplest way imaginable -- with a better rat trap.

7. How is the rat droppings look like?
The droppings are 1/4 to 1./2 inch in length, capsule shaped, with blunt ends. They are usually a shiny black, but may vary according to their diets. Norway rats and Roof rats will leave a hind foot track of about 3/4-1 inch where a mouse's track measure's 3/8 of an inch or less. Rats will also drag their tails, leaving a mark between their feet tracks. Unscented baby powder or flour, lightly sprinkled can help you determine tracks and their runways as they cross suspected areas.

8. What is the habit of the rat?
The young rats reach sexual maturity in 2-3 months, females' average 4-7litters a year, with 8-12 pups per litter. Adults live about a year. They live in colonies. The Norway rat generally prefers to live in underground tunnels. On farms, they will be near a food source: barns, granaries, livestock buildings, and silos. In the cities, they will be in the ground in there's available space, but have been known live entirely inside buildings.

9. What is the biology of rat?
Roof rats mature in 2-5 months, and are adults for 9-12 months. Pregnancy takes 3 weeks. Newborns get hair after 1 week, open eyes after 2 weeks, is weaned at 3-4 weeks Female has 4-6 litters per year, with 6-8 young per liter. They have been hearing, smell, taste, and touch (long whiskers), but had vision, and are color blind. They are good at running, climbing, jumping, and even swimming. They are nocturmal and explore a lot, but are cautious and shy away from new objects.

10. What was the disease - Black death?
Bubonic plague is the medical term. IT is a bacillus, an organism, most usually carried by rodents. Fleas infest the animal (rats, but other rodents as well), and these fleas move freely ober to human hosts. The flea then regurgitates the blood from the rat into the human, infecting the human. The rat dies. The human dies. The flea's stomach gets blocked and it eventually dies of starvation.