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.
This summer, same as last year, favoured domestic travels thanks to the COVID-19 pandemic. And while for holidays abroad pet owners arranged dog sitting, here in Czech they learnt to take them along. This group of dog owners was targeted by...
Crates or transport boxes provide your pet with safety and comfort not only during car journeys. You can see them more and more often in households with dogs. What can be the reasons for buying a crate for a dog living in a flat? What doesn't belong...
Recent estimates indicate that every third dog in the world is homeless. Some estimates go even further and state that it's half of all dogs. It is a relatively high number but the situation varies in different continents. This is one of the reasons...
The world of technology does not forget pets and their care. Now, developers have come up with a new app that will help you recognize your cat’s mood.
Many of us are under the influence of the need to fulfill a dream of getting an unconventional pet, which the minipig certainly is. This trend has been present in the Czech Republic for about ten years. But don’t be fooled by those cute snouts, taking...
Pseudogravidity, also known as false pregnancy. The condition in which the female dog’s body is preparing for giving birth, even though the dog is not pregnant. False pregnancy occurs after heat and can last up to several months. What causes it, how...
Summer is a time of joy. The warm weather encourages trips and having fun in the water. However, summer may not be as great for our dogs as it may seem. We fur may sometimes do more harm than good. How to take care of wet fur and how to prevent any...
Cats scratch, everybody knows that. But have you ever wondered why that is? If you have a feline companion at home, you might have thought it would be a good idea to break her habit of scratching. Especially if your cat has ruined your furniture with...
Some love it, some hardly tolerate it. We are, of course, talking about summer and the hot weather that comes with it. Hot weather can become rather unpleasant for our canine companions. While cats usually tolerate heat without any major problems,...
Pet owners know that summer doesn't only bring warmth, sunshine and late sunsets. It's also the time of ticks, who know how to torment our four-legged friends. Unfortunately, it's very difficult, or even almost impossible, to prevent our pet from...
The summer season calls for hair cuts. And not only yours but also your pets'. But a shorter coat doesn't always mean lower body temperature. On the contrary, sometimes it could be the other way round. How and when to clip our four-legged friends'...
The fact that our mental well-being benefits from the presence of animals - namely dogs - has been mentioned here several times. Canis therapy is a highly effective therapeutic process where, to a certain degree, a dog interacts with a patient or...
