Cats generally live longer than dogs on average. Typical lifespan ranges are:
- Cats: about 12–17 years for many pets, with indoor cats often reaching 15–20 years and occasional individuals living into the 20s or even higher in rare cases.
- Dogs: widely varies by breed and size, but many dogs live roughly 10–13 years, with small breeds often living longer (around 12–16 years) and large/giant breeds sometimes only 6–10 years.
Key factors influencing these lifespans include:
- Size and breed: smaller dog breeds and most domestic cats tend to outlive larger dogs and many other breeds.
- Indoor vs outdoor living: indoor cats and dogs typically have longer lifespans due to reduced exposure to hazards.
- Health care, nutrition, and activity: regular veterinary care, balanced diet, and appropriate exercise can extend life for both species.
- Genetics and early-life conditions: inherited health issues and prenatal/early-life conditions can affect longevity.
If you’d like, I can summarize latest consensus numbers from reputable sources for both cats and dogs, or tailor guidance for maximizing lifespan in a specific pet’s situation (age, breed, indoor/outdoor).
