1. Dogs' sense of smell and hearing are relatively developed. 2, there are many types of hair color, such as "black", "gray", "white" and so on. 3, dogs have evolved from the Gray Wolf and are one of the earliest domesticated livestock. 4, dog's smell is applied to some "special work", such as searching for poison. 5, the hearing sensitivity of the dog will also be used to see the home nursing home. Dogs are carnivorous animals. They like bones and have their self -defense ability. They sometimes eat grass. Dogs are cooling by the tongue and have a hierarchical system. When they lie down, they always turn around. The dog judges the opponent's strength and weakness based on his own sight. He expresses his belly to express his obedience, has the habits of the territory, and likes to hunt up creatures. When the dog is sick, he avoids humans or other dogs. It the answer to help you, other questions want to consult the pet doctor, click the avatar below, and conduct free 1 to 1 consultation.
1. Sensitension The sensitivity of the dog's sense of smell is the head of the animals. The blind dogs can use the nose to live like a normal dog. The dog sensitivity of the dog is mainly manifested: one is the degree of sensitivity to the smell; the other is the ability to distinguish the smell. The sensitivity will be different due to the type of taste. The ability of a dog to find the smell is 1 million or even 10 million times the human ability. The ability to distinguish the smell is more than 1,000 times. Excellent police dogs that are specially trained can distinguish more than 100,000 different odors. 2, hearing . Their hearing is 16 times that of humans, and it is why it has always been responsible for the home nursing home. Not only can they hear a long -distance sound, but they can also be amazing through the 30 directions of sound feces. The auditory stress can reach 12,000 Hz, and it can hear the farthest distance of about 400 times. Dogs' discerning ability of the sound direction is also twice the humans, and can distinguish 32 directions. It can distinguish the number of vibrations per minute of the auctioner of 96 or 100 times, 133 or 144 times. Dogs' passwords and simple languages can establish conditional reflection according to the changes in tune syllables. First of all, in terms of smell, they should not have to say more about their sensitivity in this regard. After all, it is not false to use them to find criminal suspects. They are really sensitive to odor. 3, vision . Their vision is only three -quarters of human beings, and it is a full -scale consequences, that is, the closer they are, the more they ca n’t see them. Pucting information: , dogs belong to the spinal animal doors, vertebrates asian, mammalian, real beast subclase, carnivorous eyes, cracked feet, and dogs. Chinese is also known as "dogs", and dogs are distributed around the world. Dogs and horses, cattle, sheep, pigs, and chickens are called "six beasts". Some scientists believe that dogs are domesticated from early humans from the ash wolf, and the domestication time is 40,000 years ago to 15,000 years ago. Known as "the most loyal friend of human beings", it is the pet with the highest breeding rate, and its life span is about 12-18 years. In Chinese culture, dogs are one of the zodiac signs. In the 11th of the zodiac signs, functional characteristics surveys of the European Lung Disease Foundation show that lung cancer is the second of Europeans Roughly dead cancer. Studies have found that dogs who have been trained by smell can be heard from 100 patients with lung cancer patients, and the accuracy of 372/400 can also be reached 372/400 for samples without lung cancer.
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