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SESK: Stuff Everyone Should Know · sesk.info/small-guinea-pig-lifespan

How long do pet guinea pigs usually live?

5 to 8 years, longer than most kids expect.

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  1. 1 to 2 years
  2. 15 to 20 years
  3. 5 to 8 years ✔

Why: The Merck Veterinary Manual lists a guinea pig lifespan of 5 to 8 years. That is much longer than a hamster's, so plan for years of daily care.

Huh, didn't know that: Guinea pigs are usually gentle, social and often vocal.

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Why are guinea pigs bad at keeping secrets? They always squeak.
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References

Answer: 5 to 8 years. The Merck Veterinary Manual lists a guinea pig lifespan of 5 to 8 years. That is much longer than a hamster's, so plan for years of daily care.

  1. Description and Physical Characteristics of Guinea Pigs (Merck Veterinary Manual) www.merckvetmanual.com/all-other-pets/guinea-pigs/description-and-physical-characteristics-of-guinea-pigs
    Lifespan: 5-8 years
    Checked 2026-10-11.

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