Question 2: How many years does a mouse live? Different kinds of mice have different life spans. You mean the house mouse, right? The life span of house mice is only two years. The world's largest mouse capybara weighs more than 50 kilograms and has a life span of 12 years.
Question 3: How many years can a mouse live? The mouse is too tired because it works all night. It doesn't know how to keep in good health, so its life will not be long. I can live for about two years at most. In addition, I live in fear all day, afraid that the owner will see it stealing the owner's snacks, avoiding the cat's patrol and guarding against food poisoning. In case of plague, it would be even worse, almost in no one lives. However, in order to inherit others, family planning is not adopted, and a generation is born every three months, and each generation has 3-9 generations. The mouse is a kind of rodent, and its size is large and small. There are many kinds, there are more than 450 kinds, the number is large, there are billions, and they breed quickly and have strong vitality. They can eat almost anything and live anywhere. Rats can dig holes, climb trees, climb mountains and wade, which is extremely harmful to human beings. In addition to catching rats by natural enemies, people also use instruments (mousetraps, mouse cages, electronic mousetraps, etc.). ) and drugs to kill mice. There are about 1700 species of rodents in the world ... There are about 170 species of rodents in China and 32 species in the south, including domestic and wild rodents. There are three kinds of common house mice in Guangdong: Rattus norvegicus, Rattus flavipectus and Mus musculus. The wild rats are mainly yellow-haired rats, also known as Rossi rats and voles. 1, Rattus norvegicus: Its coat color is gray, and it likes to make holes in the walls and corners. Generally, it weighs about 300g, and the big one is 900g g..2. Mus musculus (mouse): the fur is gray and the individual is small. In addition to nesting on the wall, it often keeps company with people, weighing about 20-30g. 3. There are also roof rats, hamsters and yellow-haired rats. 4. Rattus flavipectus: smaller than Rattus norvegicus, with a general weight of 100-250g, long tail and big ears, and the tail length exceeds the body length. In addition, there is a small insect-eating animal called smelly, commonly known as smelly mouse. It is not a mouse, and it does little harm to human beings, so it needs to be distinguished from mice. 1, female house mouse: it can be conceived after 40 days of growth. 2. Female rats: mature in three months, and pregnant in 2 1 day. First-born babies have 5-6, then add one to each baby until one baby reaches 15- 16, then reduce one baby until one baby gives birth to 5-6 babies, and then stop breeding. A mouse is pregnant eight times a year, as the saying goes: one male and one female, 350 a year. 3. Mouse: The mouse matures early and has strong reproductive ability, and its life span is 1~3 years. The newborn mouse has no hair, red skin, closed eyes and ears stuck to the skin. Crawl for a week and open your eyes in 12 days.
Question 4: How long can a mouse live under normal circumstances? There are about 170 species of rodents in China and 33 species in south China. There are two kinds of rodents: domestic and wild. There are three kinds of common house mice in Guangdong: Rattus norvegicus, Rattus flavipectus and Mus musculus. The wild rats are mainly yellow-haired rats, also known as Rossi rats and voles. Take the house mouse as an example, about 2 years. The average life span of mice we used to keep in the laboratory was about 2 years.
Question 5: How long does a mouse live? 1. The life span of mice is 1 ~ 3 years.
Second, the speed of reproduction.
1, female house mouse: it can be conceived after 40 days of growth.
2. Female rats: mature in three months, and pregnant in 2 1 day. There are 5 ~ 6 firstborn babies, then one baby is added until one baby reaches 15 ~ 16, and then one baby is subtracted until one baby gives birth to 5 ~ 6 babies, and then reproduction is stopped. A mouse is pregnant eight times a year, as the saying goes: one male and one female, 350 a year.
3. Mouse: The mouse matures early and has strong reproductive ability, and its life span is 1 ~ 3 years. The newborn mouse has no hair, red skin, closed eyes and ears stuck to the skin. Crawl for a week and open your eyes in 12 days.
Question 6: How old does a hamster live? Their life span is very short, averaging about two years. Male hamster 1 month and a half sexual maturity, female hamster 2 months sexual maturity. Of course, the lifespan of different hamsters will be slightly different. Relatively speaking, Rovsky hamster has the longest life span of 3-3.5 years.
Question 7: What is the life span of hamsters?
Chinese name: hamster
Chinese alias: hamster, hamster
Latin scientific name: Cricket family
English name: hamster
classify
Boundary: animals in the animal kingdom
Door: Chordata, Chordata.
Class: mammals
Objective: Rodents.
Family: Cricket Family, Muridae Family.
Subsubfamily: hamster retina
Genus: Heterohamster.
Gansu hamster (Gansu hamster)
European hamster
hamster
Golden hamster (middle hamster)
Dwarf hamster
(Cerschi Ya)
introduce
Hamster is the general name of hamster subfamily. * * * 7 genera 18 species, mainly distributed in Asia and a few in Europe, among which there are 3 genera and 8 species in China. Except hamsters distributed in Central Asia, other hamsters have cheek pouches on both sides of their cheeks, which extend from the molar side to the shoulder. It can be used to temporarily store or carry food back to the cave for storage, hence the name hamster, also known as hamster, mobile hamster.
Hamster has a pair of growing incisors and three pairs of molars. The tooth type is: 1 0 0 3, which is a staggered triangle. Molar teeth can grow for a lifetime with or without roots.
All kinds of animals in this family basically belong to small and medium-sized rodents. Body length 5~28 cm, weight 30~ 1000 g, short and thick. The tail is short, generally not more than half of the body length, and some varieties in the factory are not more than half of the length of the hind legs, or even basically invisible. The main food is plant seeds, I like nuts, I also eat tender stems or leaves of plants, and occasionally I eat bugs. Most people don't hibernate and live by storing food in winter. A few species will enter a quasi-hibernation state that is inactive in cold weather.
Hamsters are mainly active at night, and their eyesight is poor. They can only distinguish shapes and colors from black and white. The coat color is complicated. Breeding after the end of spring, 2~3 fetuses per year, 5- 12 per fetus. The average life span is 2-3 years.
Some kinds of hamsters have become popular pets in recent years because they are close to people, such as golden hamster, Gakaria hamster, Campbell hamster, Roborov hamster and so on.
The hamster was discovered by 1829 in a city near Siberia. They belong to rodents, and their scientific name is Rodentia, which comes from Latin, meaning to bite, which means that teeth are constantly growing and need to be ground. Hamsters belong to the family Carnivora, and then they are divided into several categories: middle hamster, big hamster, small hamster and thick-shelled hamster. China hamster belongs to the genus Hamster; ; Syrian hamster (golden mouse) belongs to middle hamster; Campbell I, Gacaglia (Little Gray Overlord), Little Silver Fox, Little Purple King) Phodopus sungorus and Little Green Treasure (Old Man) Phodopus roborovskii are all hairy feet.
Appearance characteristics
The most common coat color of hamster is white from cheek to abdomen and brown on the back, but there are also spots formed by dark brown, and the coat color is mostly gray, and then a variety of breeds such as gold, mottled and even long hair are cultivated. All kinds of hamsters look similar, but their body shape and coat color are slightly different, and their personalities are similar. Among them, Roborowski mouse is the smallest kind of Dowav hamster, which is quick and timid, and its back color will change from black to brown during the growing period. Hamsters are one of the cutest pets. Many children or women can't put it down when they see this kind of "living hair doll".
Hamster 10- 12 cm long, with skin on cheeks. There are a pair of sharp front teeth in the upper and lower jaws. The hair on the back of the body is fawn or brownish yellow, and the ventral, forelimbs and hind limbs are black. There are 3 white or light yellowish spots on the front end of the body. The feet are white and slightly yellow. They are different from mice. They have a short tail, or even no tail. Except for China hamster, the tails of other hamsters are less than one centimeter. The most interesting thing about hamsters is that they know how to hide food on both sides of their cheeks and then spit it out in a safe place, so some people ...