Can’t resist your dog’s loving gaze? there is an explanation

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[EN VIDÉO] 5 funny dogs
Discover the Dogue de Bordeaux, one of the oldest French dog breeds, the fragile-looking but surprisingly long-lived Chihuahua, the Neapolitan Mastiff, voted the ugliest dog in the world in 2017, the slugs with myriads of hair, and the Xoloitzcuintle. , also called the Mexican hairless dog. These five funny dogs deserve our attention, at least for the duration of the video. Have fun walking for one minute and thirty-nine seconds with them!

In a Disney animated film Voltstar to spite himself” (2008) we meet the dog hero from the popular series who, after learning about real life, quickly learns the principle “the look of a beaten dog”. One that all of our four-legged canine companions know how to use to get exactly what they want from us. Something to put in the fangs, most often.

From University of Pittsburgh researchers (The United States) confirms to us today that we bear full responsibility for this. Because the dog appears as the only one domestic mammal with whom we have established a connection through a glance. Thus, over the course of domestication history—a history going back more than 30,000 years—his best friend, people may well have selected dogs based on their ability to produce facial expressions that resemble him.

This new study uncovers key anatomical features that may explain how our dogs can adopt the famous “the look of a beaten dog”. Everything will be played on the side of the small muscles used to form facial expressions. facial muscles. Ours are mostly made up of what are called fast twitch myosin fibers. This allows us to quickly form facial expressions. But without our ability to hold them for a long time.

Anatomical features to study

The facial muscles of dogs are also made up of many fast-twitch fibers. Between 66 and 95%. Wolves have much less of these fibers – about 25%. On the other hand, they have a high percentage of slow twitch fibers – 29% compared to 10% on average in dogs. More efficient fibers for movements long and controlled. Fibers that don’t tire as quickly.

The fast twitch fibers our dogs use give them more facial mobility. They provide faster muscle movements. They also allow small movements such as eyebrow poll. And the short, powerful muscle contractions needed to bark. Barking, which is also used by dogs to communicate with us. Slow twitch fibers, on the other hand, are important for the sustained muscle movements that wolves use for their movements. screams.

Previous work has already highlightedlight the presence of a mimic muscle in a dog, which a wolf does not have. A muscle that also helps create the “beaten dog look”. To learn more, researchers now want to use staining antibody differentiate from other types of myosin fibers. And shed even more light on the anatomical differences humans have created between dogs and wolves.

Why does your dog’s gaze make you cringe?

Dogs sometimes put on a cute expression. Such a cute look may be due to the development of certain muscles that wolves do not have. An evolutionary strategy reminiscent of the one that makes us melt in front of a baby.

Futura article from AFP-Relaxnews published 06/18/2019

AT study published Monday in the Proceedings of the American Academy of Sciences (PNAS), the researchers explain that they dissected the cadavers of domestic dogs and wild wolves from which dogs diverged about 33,000 years ago. No animals were killed for this study. Scientists have found two well-formed muscles around eyes dogs, but not wolves.

In another part of the study, they filmed two-minute interactions between dogs and a man unknown to them, then between wolves and man. Only dogs managed to make movements brows high intensity of looking at people. “It helps them make their eyes bigger like babies do.”Anne Burrows, a professor at Duken University in Pittsburgh and co-author of the study, told AFP. “It causesreaction protection in people. Since the muscles were highly developed in dogs, but not in wolves, “this tells us that this muscle and its function has been chosen” people, adds Ann Burroughs.

The look that distinguishes a dog from a wolf

This study is in addition to several others, including a famous 2015 study by researchers in Japan that demonstrated that eye exchanges between dogs and their owners lead to a mutual peak in activity. oxytocinWhere ” hormone love.” Just like what happens between a mother and her child.

The study, published on Monday, involved only four wolves and six domestic dogs. To confirm the link, it would be necessary to disassemble further. Researchers would also like to study ancient dog breeds and compare them to their current descendants, such as the Chihuahua, and study other breeds. variety man’s friends are like horses and cats.

How does your dog talk to you?

Article Jean-Luc Gude published October 23, 2017

The dog emphasizes its facial expressions when a person looks at it. The statement will not surprise those who regularly meet these animals, but now a scientific experiment proves it. This is really an attempt or request for social interaction, not the effect of emotion. Without spectators, they are less talkative…

Dropped ears, puppy eyes, rolled lips: Man’s best friend could use these facial expressions to convey a message, and not just under the influence of emotions, according to a study published in Scientific reports. Everyone knows thatdogs very sensitive to human attention. “But our results go further, suggesting that we should interpret their facial expressions as a way of communicating.”explains AFP Julian Kaminsky from University of Portsmouth in the United Kingdom, one of the co-authors of this work.

To reach these conclusions, Juliana Kaminsky and her colleagues studied 24 purebred dogs different, aged from one to twelve years. All were pets. The researchers filmed the dogs and their expressions by placing them one meter away from a person facing or back, attentive or distracted. Result : “their facial muscles move more if the person is attentive”Juliana Kaminsky says

And “dog eyes” the expression they use most often. The comparison was made with the response to the food supply. Source of desire and emotion, the situation can causefacial expressions. It’s not an option. For authors, experience shows that facial expressions do not reflect emotional state.

Dog facial expressions are an attempt to communicate

The researchers concluded that in front of people, the dog expresses more than just emotion. “The results may indicate that dogs are susceptible to human attention and that their expressions are potentially active attempts at communication, not just emotional displays.— explains the researcher.

But it should not be inferred from this that a domestic animal assumes the form of a beaten dog in order to propitiate its owner. According to the team, this work does not confirm that dogs are aware of what a person might think or feel depending on their facial expressions. This ability to represent another’s way of thinking is calledtheory of mindseems to be very rare in animals and is not demonstrated in this experiment.

With AFP

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