Most of us have this long thought-to-be-true idea that one dog year equals to seven human years. So, if you have a two-year-old puppy at home, it is already 14 years old when compared to humans. Therefore, if you have a ten-year-old dog at home, it is supposed to be basically a 70-year-old grandpa. However, these calculations are not accurate according to expert findings.
Direct Correlation Doesn’t Work
The team of scientists from San Diego University in California came up with a new technique that doesn’t use the direct correlation between the dog’s age and the human’s age and it shows that dogs age much faster than people early on in their lives and then the process gradually slows down. The research also showed certain connections between human and dog development. For example, it showed that approximately a seven-week-old puppy is as old as a baby of nine months.
DNA-based Research
The whole research was based on the molecular changes on the surface of DNA in a sample of 104 Labradors from the age of 0 to 16 years. Thanks to that they found out that molecular changes, the so-called process of methylation, influence the expression of certain genes. During their lives, dogs go through “shutting down” of certain genes they no longer need or their bodies fix genes in which mutations occur.
Common Milestones for Dogs and People
Both people and dogs share the processes of shutting down or fixing the genes as well as they also have some similar physical life milestones, such as the replacement of teeth, the onset of puberty or sexual maturity. However, the time when these occur is different.
Aging Is Fastest until One Year of Age
The whole research also came up with a formula that can help to determine the age of every dog. It means that a one-year-old puppy is on a similar level as a 31-year-old human. The human equivalent of a two-year-old dog is 42 years, and a three-year-old puppy is approximately as old as a 49-year-old human. This pattern makes it clear that the aging of dogs gradually slows down. At this rate, a 7-year-old dog can be compared to a 62-year-old human.
The following table shows the age of a dog and its equivalent in human years:
1 dog year 31 human years
2 dog years 42 human years
3 dog years 49 human years
4 dog years 53 human years
5 dog years 57 human years
6 dog years 60 human years
7 dog years 62 human years
Researchers also introduced a formula that can be used to for further calculations. However, it’s not as simple as the previously used one with direct correlation. The human years of a dog can be calculated as six times the natural logarithm of a real age of a dog increased by the constant of 31.
In this cycle, we’re going to have a look together on how cats and dogs are doing around the world. Where they are pampered and people forego them and where, to the contrary, the pets suffer and their situation is critical. Today, I will introduce you...
Especially outdoor cats are often suffering from ear mites. What is it actually, and how to get rid of it?
In this series, we will get to know famous dog personalities. Dogs play an important role in our life, so let’s take a look what they have already achieved during the time of our lives together. With his determination, Balto saved lives of many people...
Everyone likes to take their four-legged friend along with them on a holiday, but the situation just won’t allow it sometimes. Not all the dogs take well to long trips by car or high temperatures, or are A graders in obedience, some are habitual...
Already since about 100 thousand years ago, when people started with domestication, we have been aware of positive effects of living together with animals. And this doesn’t concern only healing methods. Already the very presence of our pets helps us to...
If you have a cat at home, you have certainly encountered the issue of who will take care of it at times. Especially now, at the time of holidays and departures for vacations. Relatives or friends are not always able to come over and to take the cat...
I have already written about dangerous foods for dogs. But how about cats?
All of us probably know that chocolate is dangerous for dogs. However, did you know that you can poison your furry friend even with nuts, for example?
The time of kittens is getting closer. Outside, however, the kittens may lose their mum from various reasons. Besides, people will start getting rid of unwanted family arrivals. So it can easily happen to you, that you will find little cat new-borns....
Do you know, that you can insure your pet? But does it even pay off, what does the insurance cover and what are the conditions?
You may have already met a dog with a tied yellow ribbon on its collar or on its leash in the street. Did you know, that it is not a fashion accessory, but a message for the passers-by?
Rabbit hopping is a relatively young discipline that is quickly gaining new fans. After all, rabbits are virtually born for jumping, so why not use it for both their and their master’s entertainment.
