How do murid rodents and squirrel-like rodents differ in typical life span?

In the study of biology, there is a notable distinction in longevity between different groups of rodents. Murid (mouselike) rodents are characterized as short-lived species. In contrast, sciurid (squirrel-like) rodents typically exhibit longer life spans, often reaching ages two to three times greater than those of murid rodents.1

These differences in longevity are influenced by various physiological factors, including brain weight, body weight, and resting metabolic rate. Generally, mammalian life span is positively associated with brain size and negatively associated with a high rate of living, or metabolic rate.1