As a China saying goes "couple appearance", which means the mind and the habits of husband and wife are converging, and their appearances also become more similar since they live together and affect each other in any aspect. Studies have shown that such kind of phenomena not only exists between people but also between humans and animals.
The New York Times also reported that people and their pet dogs may not only become close friends, but even "similar looks." Relevant scientists have done further empirical research on this
Before this, researchers in San Diego in 2004 found that in a related experiment, participants were often able to accurately match the owner's photos with their dogs, but only for purebred dogs. The study also found that in the pairing process, facial expressions and other simple features, such as hair, body shape, etc., play a more important role in judgment.
In the same year, a psychologist at the University of South Carolina launched another independent experiment, refuting the results of the above research and pointing out the problems in the design of the experiment. Later, researchers in San Diego continued to correct the experimental methods in response to criticism, and still reached similar conclusions. At this point, the debate between the two sides has come to an end.
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