On average, dogs live 12 years and cats, 15 years. For comparison, pet rabbits max out at around 10 years, guinea pigs 5 years, and mice at 4 years.
Just how old can dogs and cats get?
Eighteen dogs age 20 or older have been confirmed. The oldest, an Australian cattle dog named Bluey, lived for 29 years, 5 days.
But 40 cats age 21 or older are known. Fourteen of them reached their 30s, including Guinness-World-Record-holder Creme Puff at 38 years, 3 days.
To put that into perspective, 30 cat-years are equivalent to 120 of ours.
Doesn’t one cat-year equal seven human-years?
Short answer: It changes over time, starting out at around 1 (cat)/16 (human) and eventually reaching 1/3 to 1/4.
Details: There are a lot more numbers coming up, so it’s important to start out with the reminder that everything isn’t as cut and dried as it looks–animals actually pass through these stages gradually, and at their own individual pace, just as we go through our own lives.
Too, environment and food sources usually determine how long animals can live. Stray urban cats, for example, only survive for about two years, while residents of a feral cat colony are lucky to see 10 years go by.
Here, we’re talking about ideal conditions–pets that have been kept indoors and well taken care of all of their lives.
Longevity varies a bit by breed, but this is nowhere near as dramatic as in dogs (where small breeds generally outlive the large ones).
The following AAFP/AAHA (American Association of Feline Practitioners/American Animal Hospital Association) stages of development fit most pet cats: Continue reading