This information can be used to inform patients and their health care professionals as they decide the best course of treatment and to improve care for patients in the future. Information from registries may also be used to compare the performance of healthcare providers with regard to their outcomes and resource use.
Quick Answer. A house mouse that is a pet has an average life span of about two years. There have been mutant and calorie-restricted mice in captivity that have lived for up to five years.
A family of 6 mice can multiply into a family of 60 mice in 3 months. Reaching sexual maturity at about four weeks of age, itâs easy to understand how a mouse population within a home can quickly grow out-of-hand. Mice produce a great number of young, but have a high mortality rate. 2  Mice are an important source of food for wildlife such as hawks, owls, and fox which can control populations outdoors. 3  The lifespan of a house mouse is approximately 1 year.