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.
If you have decided to buy a purebred cat, you still have a lot of questions ahead of you. Which breed should you choose? A female cat or a tomcat? A kitten or an adult? Only if you consider everything carefully, you'll get the right companion for...
Lots of rabbit lovers choose this breed mainly by its appearance. The cuter, the better. But maybe they don’t know that a certain kind from the order of lagomorphs lives in nature, and hardly any domestic rabbit can match it in its cuteness. The same...
If you've noticed that your fluffy friend excessively licks and nibbles at his paws, you should not leave it like that. It might have several causes. Whether it's a psychological problem, allergy, yeast or other problem, the situation must be...
Did you know that our senses include the perception of the magnetic field? While we have almost lost this ability already, dogs still have it and use it every day. Do you know for what?
The British Shorthair cat is without a doubt the most popular cat breed not only in the Czech Republic, but also in the rest of Europe. This is caused not only by its appearance of a small Teddy bear, but also a mild, trouble-free nature.
In individual rodents, we’ll find breeds that are more popular with breeders than others. One of those is the American Teddy, typical with its peculiar hair structure that gives it the appearance of a teddy bear.
There is certainly no doubt that the Labrador belongs among the best known and most popular dog breeds. The reason is his extraordinary versatility, adaptability, intelligence and loyalty. Like the British Shorthair cat, the Labrador Retriever can be...
To spend a few days outside of civilisation - in the forest, on the ridges of the mountains - away from the hustle of the cities, in the wilderness and ideally with your dog. An imaginary return back to nature is the trend that did not avoid even the...
Hunting and exercise. If the dog loves both these activities, then coursing is the perfect activity for it. This cross-country race is based exactly on the desire of the dog to catch its prey.
No matter how thorough we are with the prevention, a situation might come up when a dog or a cat will get to a poisonous thing, whether it’s by our inattention or it's somebody else’s fault. That’s why it’s not off-topic to prepare yourself for the...
Under the name of dogtrekking, imagine an orientation walk with the dog. Official rules rank it among extreme dog endurance sports.
There may be more causes of dog fear. And the first step to eliminate it is to find out its origin and cause.
