20200927, 14:20  #67  
Feb 2005
Colorado
2×263 Posts 
Quote:
https://www.onlineconversion.com/dogyears.htm 

20200927, 14:22  #68  
Feb 2017
Nowhere
3580_{10} Posts 
Quote:
FWIW I ran across what appears to be a better comparison between dog age and human age: 1) The first year of a dog's life is roughly equivalent to the first 21 years of a human's life. 2) Each succeeding year of a dog's life is roughly equivalent to 4 years of a human's life. The first part of the formula reflects the fact that most dogs reach maturity in their first year of life (though some large breeds take two years). The 4year equivalent for succeeding years makes the stages in a dog's life match stages in a human life reasonably well. Obviously, the 7year formula doesn't work too well for young dogs. For dogs around 5 or 6 years, the two formulas aren't far apart (they coincide at 5 years 8 months). In your case, 7*7 = 49, 21 + 4*6 = 21 + 24 = 45. Early middle age. The formula above seems better for old dogs. The oldest dog I ever saw was a school friend's dog, a mediumsized black short haired dog named Patty, which I first met when my friend and I were in grade school. Quite a few years after high school, I was visiting my friend when the most ancientlooking dog I ever saw came creaking into the room. It was, or had been black, but now with a lot of salt in that pepper. Its muzzle was completely white. Openmouthed, I asked, "Is that Patty?" It was. I asked, "How old is she? She was 21 years old. She had gone blind and almost deaf. By the sevenyears formula that would be 147 years, which is well beyond any documented human longevity. By the other formula, it works out to 21 + 76 = 97 years, which seems about right. Last fiddled with by Dr Sardonicus on 20200927 at 14:25 Reason: Insert missing word 

20200927, 16:27  #69  
Bamboozled!
"πΊππ·π·π"
May 2003
Down not across
7×1,447 Posts 
Quote:
Nonlinearity is evident in the physiological ages of cats too, when measured against a human lifespan defined to be linear. Our oldest cat, Brni, died at the age of 19 years, 5 months. That is roughly equivalent to 95 in human terms. Extreme ranges for the two species are roughly 25 and 120 respectively. Puberty, OTOH, occurs at perhaps 0.8 and 12 years respectively. The former is a multiplicative factor of roughly 5; the latter of 15. 

20200927, 18:22  #70 
Random Account
Aug 2009
U.S.A.
2·811 Posts 
My sister had a black cat which lived to be 21 years old and a ginger which made it to 17. She has one now, in poor health, which she figures to be a minimum of 15. I had a calico which passed at 14. Current cat Levi is getting close to 12. He still has all of his teeth. He eats well and drinks a lot of water. He gets energy spurts where he will sail around in here like crazy. I won't worry about him too much as long as this pattern continues.
Last fiddled with by storm5510 on 20200927 at 18:25 
20200929, 01:51  #71 
"Matthew Anderson"
Dec 2010
Oregon, USA
2^{2}×151 Posts 
Moved from birds thread
Okay, so I learned something. Somewhere along the line I was told that to calculate "dog years" you multiply the age of the dog in calendar years by seven. There are other ways of calculating it. My dog has wisdom whiskers. She has some white fur around her mouth. This is a sign of old age. That is all. Matt Last fiddled with by Dr Sardonicus on 20200930 at 13:29 
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