Dogs can match the shout to the body shape
We often see this situation in the countryside. If a dog barks at night because it sees a stranger or an animal, once the dog barks, even the dog far away will also bark. Followed by barking. There may be a reason why dogs are so sensitive to the sounds of the same kind. Some researchers say that dogs can infer the physical size of the other person through the sounds of the same kind.
In a previous study, behavioral scientists from Hungary's Eötvös Lorand University and his colleagues discovered that dogs will make a sound when protecting a delicious bone. A special cry that warns other dogs that "this bone belongs to them." This cry often stops other dogs who hear the sound from searching for the bone.
So the researchers selected 24 of the 96 test dogs and asked them to watch the projection of two dogs on the big screen. On the projection, one was a small dog with a height of 52 cm, and the other was a breed of dog. Like a puppy, but taller than 60 centimeters, and 30% larger than a small dog. The other test dogs were used as experimental controls. The researchers either showed them one large and one small triangle, or played one large and one small triangle. Projection of two cats
Then the researchers placed a speaker in the center of the projection screen and played the sounds of the older dog or the smaller dog as they defended their food. The researchers then recorded the dogs' performance and observed which dog's projection they looked at when they heard the barking. The dogs that looked at the image of a dog or a cat looked at the image more times than the dogs that looked at the triangle image after hearing the bark. However, 20 of the 24 dogs that looked at the dog image were able to do so. Correctly respond to the barking sounds being played. When you hear the bark of the big dog, you will first look at the projection of the big dog. When you hear the cry of the small dog, you will first look at the projection of the small dog, and pay attention. It also takes longer
So dogs may also match a person's body shape with their shouts Spread to other dogs
And dogs who look at the cat’s projection will mostly look to the left when they hear the shout. Previous research has shown that dogs looking to the left indicate that they are encountering something unfamiliar or unexpected. This result proves that dogs "will actually send information about their size when they bark." The researcher said that the so-called barker is accidental and the listener is intentional. Dogs who hear this bark can infer the other party. size, and then it made the decision whether to go forward and fight or stay away.
This is a great study. Marc Bekoff, a cognitive behavioral scientist at the University of Colorado in the United States, said that research results prove that white dogs have the ability to image in the brain. It is also reasonable for wild animals to do this in daily life, especially if they may beat or lose their territory or couples, there must be some non-interactive method to evaluate the opponent's physique.
Brian Hare, an expert in animal cognition at Duke University in the United States, said that this experiment may also provide assistance to other research projects. People can use dogs to listen to sounds. Start research using techniques that work with images. Said: If dogs can judge the size of the same kind by shouting, then can we use this to predict? Dogs can judge the shape of people and then express it to the same kind through shouting, so the similarity is in After learning this information, they will also bark along with the former, spreading this information to more dogs.
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