* Gerbils: 2-4 years.
* Guinea Pigs: 5-7 years (sometimes up to 8 years).
Factors that can affect lifespan:
* Genetics: Some breeds or individual animals have a naturally longer lifespan than others.
* Diet: A healthy diet specifically formulated for their species is essential.
* Environment: Clean, spacious enclosures, proper temperature, and minimal stress contribute to longevity.
* Veterinary Care: Regular checkups and prompt treatment for any health issues can significantly extend their lives.
Remember: These are averages, and some animals may live longer or shorter lives.