Who is this rodent?

Most rodents have a tail, varying in shape and size. Usually it is long. Sometimes there is a catch tail, as in a commoner. Covering the tail of the fur can be lush - rodents living on trees usually have a fluffy tail - it can also be completely bald. Sometimes it serves communication. The beaver strikes the water and the rats are rattled to make an alarm. In some species there is only a residual tail or they do not have it at all. The Syrian hamster has a short tail that does not even reach 1 cm.