How long can laboratory house mice live?

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In laboratory settings, the house mouse (Mus musculus) can live for as long as three years. This lifespan is notably longer than that of free-living mice, which face significantly higher environmental pressures and risks.1

The house mouse is a rodent belonging to the genus Mus and the family Muridae. While laboratory strains are often used in animal experimentation for biomedical and genetic research, their longevity is a result of controlled conditions compared to their wild counterparts.1