Dogs communicate with each other with their eyes

In humans, anger or painful moments can be conveyed through the eyes. However, we are not the only creatures that use sight to convey the message, because wolves and dogs also communicate with each other with their eyes.

A recent study in Japan revealed, eye shape, iris color and spots, langes on the faces of dogs are part of a complex, eye-based communication system that people still do not understand. .

Sayoko Ueda from Tokyo Institute of Technology and Kyoto University (Japan), who led the study, compared the facial and eye characteristics of 25 different dog species. He found that dogs possess the most impressive eyes tend to live and hunt in groups, where eye contact is essential for defeating large prey.

The eye shape, the iris color and the spots, lang on the face of the dogs contribute to a complex communication system.

Meanwhile, dogs that possess camouflage eyes are more likely to live alone and in pairs, as communication with other species may not be necessary in the same way.

According to PlosOne magazine, Ueda and his colleagues divided the dogs into 3 groups: Group A, consisting of gray wolves, North American coyotes and jackals, possessing brighter eyes than those of they, as well as faces with spots, make it easy to locate their eyes.

Group B consists of mane wolf, dingo dog and fox kit, only spots, lang on the face indicating the position of the eyes and pupils are not easy to see. They also tend to live alone or in pairs.

Shaggy dogs, badger (tanuki) and wild African dogs belong to Group C. These dogs have no spots, wandering around their eyes to highlight this feature with the rest of the face. They tend to live in groups, but often hunt separately.

The team observed a number of interactive species in the zoo and found that species that possessed much more observable eyes were more likely to live in flocks. All three species look at the same species with the same number of times, but the wolf looks longer than the fox or shag dog.

The difference in brightness and recognizable color of iris compared to humans and spots, wandering on the faces of each group of dogs.

Previous studies have suggested that iris color is brighter than sunlight adaptation, similar to human skin color variations. To test this hypothesis, the Japanese team compared the eye color of three wolf breeds that originated in the Arctic, temperate and subtropical regions. However, the iris color does not change much between them, implying that this trait may have developed to improve communication, rather than adapting to the environment.

Research by the viewpoint, visual communication can be an important tool for other dogs, including domestic dogs. Some previous studies have shown that domestic dogs are more likely to directly communicate with humans than wolves are nurtured in the same conditions, implying they are more in tune with humans after thousands of years. they live.