If a dog has eyes that seem to tell you something or require your attention, it may be the way of evolution to manipulate your feelings.
Researchers have found that dogs have developed muscles around their eyes, allowing them to make expressions that are particularly appealing to humans.
A small face muscle allows canine eyes to mimic a baby-like expression that provokes
The study states that such "puppy eyes" help domestic dogs to connect with humans
] Previous studies have shown how similar canine expressions can appeal to humans, but this UK and US study shows that there are
This allows dogs to create what the researchers call " expressive eyebrows "and" create the illusion of human communication. " 1
She says people would have" unconscious preference "to protect and raise dogs with such attractive features, giving them evolutionary advantage and reinforcement this change in the next generations. "The evidence is convincing that the dogs have developed muscle to lift the inner eyebrow after they have been tampered with by wolves," said Dr. Kaminsky in a study published in the National Academy of Sciences' Collection of Reports
The findings of British and American researchers on anatomy and comparative psychology show that personality change has evolved over thousands of years into dogs living together with humans. Previous studies have shown that dogs are more likely to use this expression in the eyes of the puppy when viewed – suggesting that it is intentional behavior and is intended for human consumption.
The author, Professor Anne Burroughs of Duquesne University in the US, says that evolutionally the changes in dog's facial muscles have been "remarkably rapid" and can be "directly related to the increased social interaction between dogs and humans"  findings, says Professor Brigitte Waller of the University of Portsmouth, show "how important people can be attracted to our attention and how powerful the face can be in social interaction."
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