What's the difference between an experimental mouse and an experimental mouse?

Among the experimental animals of mammals, mice are smaller than rats, easier to raise and manage, easier to control, faster in production and reproduction, the deepest in research, clear in quality control standards, and more in inbred lines, mutant lines and closed groups, so they are used the most in various experimental studies.

Rats evolved from house mice. It is widely distributed all over the world. After long-term artificial breeding, more than 1000 inbred lines and independent inbred groups have been bred. As early as17th century, some people experimented with mice, and now it has become the most widely used and thoroughly studied mammalian experimental animal.

Rats (rats; Rattusnorvegicus is a general term for a variety of rodents in the family Rattus, which often refers to many unrelated species, especially Rattus norvegicus (about 80 species, all over the old hemisphere). Similar to a mouse, it is larger. English rat also refers to other genera and even other families of house mice. Malaysian black mouse (also known as house mouse; Rattusrattus) and Rattus norvegicus in China (also known as trench rat, or Norwegian rat; Rattus norvegicus has spread all over the world with human activities. Both species can spread diseases to humans, such as bubonic plague, which can be spread by fleas on Rattus norvegicus.

The experimental mouse is an albino variety of Rattus norvegicus. NCBI classification ID: 10 1 16. Fierce temperament, strong disease resistance. Rats' front teeth are very long, and they are easy to bite their hands when they are angered, attacked and arrested, especially the lactating female rats are more dangerous, and often take the initiative to bite the hands put into the rat cage by the staff when feeding. Strong adaptability to the external environment, adult rats rarely get sick. Under normal circumstances, it is non-invasive and can be raised in a large number in cages without biting people.