Dogs and humans have been together for nearly 10,000 years, they are very clear on how to get along with humans, of course, also know how to please humans, so we always say that dogs are humane.

Indeed, although dogs do not speak, but also can communicate with humans without barriers, they rely on body language, but there will inevitably be a human misunderstanding.

For example, the dog will often grin, and we will follow their ideas subjectively that they are laughing, so the dog grin is really in the smile? Do dogs know about laughing?

Here is disinformation! Not really, do not force them to add to the drama. A research institute in the United States has recently released a conclusion, they found a large number of dogs to do data analysis, recorded the facial expressions of these dogs, and observe these changes in expression to compare with their actual emotions.

The results show that we think the dog grin in the "smile" of this expression, it is surprising that less than half of the cases are really happy dogs, more subversive results are that most of the dogs show this expression are angry and want to issue an attack. This shows that dogs do not smile, they do not distinguish between anger and happiness.

The most important thing is that the dog will not be able to smile.

I. Explanations for dogs not smiling

The reason why we humans can make a variety of rich facial expressions is that from the evolution of humans to now no longer use body language to communicate, but more advanced verbal language and facial expressions to express, so humans are the most expressive animals.

And cats and dogs are like animals, their facial muscles did not follow the evolution, this is understandable, after all, they used to be in the wild, and similar communication only needs to use action to express. So they are not able to do any expressions so far.

So cats always look smelly, while dogs look friendlier, and that's also because they have been with humans for different lengths of time; cats have been with humans for thousands of years, while dogs have been with humans for tens of thousands of years.

II. How to tell if your dog is happy

Since you can't tell if your dog is happy from facial expressions, after all, it doesn't work to judge your dog's mood by looking at their face, so it's better to just observe their tail or body movements. The performance of the dog happy is: wagging tail while jumping up and down, nose wrinkles, eyes slightly closed, ears back, of course, there is a gently open mouth la, combined with these characteristics, that the dog is really happy it.

Dogs grin to express what else
1, heat needs

This point should be very clear to many dog owners, the dog's skin is without sweat glands, so it can not sweat like humans, they can only be cooled by grinning to themselves.

So it is not difficult to find that when the dog after strenuous exercise, and to the hot weather season or environment, the frequency of the dog grin will increase.

2, to help to breathe

Dogs will open their mouths when they are particularly excited, and this time they are helping themselves to breathe more smoothly by grinning, just like people sometimes breathe through their mouths.

However, it is important to note that if a dog has two legs forked and stretches its neck very straight, and then opens its mouth wide to breathe, it is likely that the dog is having difficulty breathing, and it is best to take the dog to the hospital for a checkup.

3銆丼ocialization

The dog's daily life is also social, outside with other dogs, will also appear to show teeth, and even bite each other's situation. However, most of these situations are not too worried, because, in the dog's social way, this is just a small game, just playful play between children, as long as they do not roar normal, they have a number in mind, and will not really mouth.

4, expressing emotions

Yes, this time to the point of this article, the dog in some cases is really a good actor, they will be to their master to read, and then give their own response. For example, when they show the action of "smile", the pooper scooper will be very happy, then the dog will often do this action to please you. This grin is also a way for them to express their emotions.

1, if the dog is only very casual relaxed state grin mouth, then it may really just want to grin, and sometimes also spit out the tongue. But the dog so also shows that it is in a good mood, very satisfied, a world peace, the meaning of the years.

2, if the dog mouth open very hard, looks "smile" very exaggerated, and also panting, this time the dog may have encountered something, it has a small trouble. It wants to tell the owner that he is anxious and fearful at the moment and is asking you for help. At this point it is best to take the dog to check if it is not feeling well.

3, there is also a kind of unintentional "smile", when the dog closed mouth showing a "smile" expression, but also "airplane ears", this situation is 80% of the bad things to do.

4, the dog grin, the sides of the mouth will also be slightly wrinkled, from time to time to show teeth and accompanied by a low growl, this needless to say also know that the dog is angry, at this moment it feels threatened, the possibility of attack at any time, this is the meaning of the warning.

No matter what state the dog is in grinning is usually not a big problem, but if there is a situation like the following pooper scooper should pay attention.

Although opening and closing the mouth is a normal habit, but if the dog keeps repeating this action, constantly opening and closing the mouth, it means that there may be health problems. The following are possibilities.

The dog is uncomfortable eating a food item such as a small bone or something else that is stuck between his teeth.
There may be an abnormality in the dog's teeth, such as a fracture.

If there is nothing wrong with the above, then there is a serious possibility that there is a problem with the dog's nervous system, which is a sign that the dog is feeling nauseous. If such behavior keeps happening, then it is time to take the dog to a hospital.

In short, although dogs do not smile as we imagine, the "smiling angel" person (dog) is only a good imagination given to them by humans. But the dog's grin is really very healing, and why bother if it is really smiling.

But to be able to live and communicate with your dog in a harmonious way, reading your dog's body language is still a must-have course for pooper scoopers.