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.
Fancy Rats have a longer lifespan than wild rats. On average, a Fancy Rat will live between 2-3 years with some exceptions up to 4 years. A lack of natural predators, constant food and water and the access to medial care all play a part in their increased lifespan.