9 cold knowledge about dogs, I guess you don t know

Dogs, as one of the closest companions of humans, have always been loved by people. They are loyal, smart and lively, bringing us endless joy and companionship. However, besides these well-known traits, there are many little-known cold knowledge in dogs. Next, let me take you into the wonderful world of dogs and explore the cold knowledge you may have never heard of.

1. The sense of smell of dogs is far beyond that of humans, and it has long been recognized by the world. However, what you may not know is that dogs’ sense of smell is thousands of times more sensitive than humans! A well-trained police dog can even sniff out drugs or explosives that have been diluted millions of times. The reason why dogs have such a sharp sense of smell is because there are a large number of olfactory receptor cells inside their noses, which are far more numerous than humans. In addition, the olfactory brain area of ​​dogs is also relatively large, which can process more olfactory information. Therefore, dogs have unique advantages in tracking, search and rescue and reconnaissance.

2. Dogs can understand human emotions. Dogs are extremely perceptual animals that can keenly detect human emotions changes. Research shows that dogs can understand human emotions by observing human facial expressions, sounds and postures. When the owner is happy, the dog will show excitement and cheerful reactions; when the owner is depressed, the dog will comfort the owner and use licking, snuggling and other methods to convey warmth and care. This ability makes dogs one of the closest companions of humans, providing us with emotional support and companionship.

3. There are hundreds of dog breeds. There are many breeds of dogs, and the number of known breeds has exceeded 300. There are huge differences in body shape, coat color, personality, etc. of these varieties. From the small and exquisite Chihuahua to the tall and mighty Tibetan mastiff, from the docile and pleasant golden retriever to the smart and alert border herder, every dog ​​has its own unique charm and value. The formation of these breeds is closely related to human domestication and breeding of dogs, and reflects human love and respect for dogs.

4. The lifespan of a dog varies by breed

The lifespan of a dog varies by breed. Generally speaking, small dogs have longer lifespans, while large dogs have shorter lifespans. For example, small dogs such as Chihuahua can live for more than 15 years, while large dogs such as Tibetan mastiff usually live for about 10 years. In addition, the lifespan of a dog is also affected by factors such as heredity, diet, and exercise. To extend the lifespan of dogs, owners need to provide them with a balanced diet, adequate exercise and a good living environment.

5. Do you know the IQ ranking of dogs?

The IQ of a dog is also one of the topics people talk about. According to a Stanford University study, scientists rank dogs’ IQs. Border Collie, Poodle, German Shepherd and other breeds are among the best because of their high IQ. These smart dogs are not only capable of learning, but also good at understanding and executing human instructions. Of course, there are certain differences in IQ of each dog, and the owner needs to train and educate according to the characteristics of his or her dog.

6. Dogs are social animals. Dogs are social animals. They are born with strong social desires. In the wild, the dogs are usually composed of a leader dog and several adult dogs, who jointly hunt, guard the territory and take care of the young. This group habit allows dogs to adapt well to human lifestyles in their families. They like to interact, play and communicate with their masters, and enjoy the care and companionship brought by humans. At the same time, dogs are also good at getting along with other pets and forming close partnerships.

7. The dog's ears can rotate 180 degrees

The dog's ears are one of its important organs for sensing external information. Compared to human ears, dogs have more flexible and sensitive ears. They are able to rotate 180 degrees or more to capture sound from different directions. This ability gives dogs unique advantages in hunting, alerting and searching and rescue. At the same time, dogs' ears are also one of their important tools for expressing emotions by raising, hanging down or turning their ears to express their joys, sorrows, sorrows, and sorrows.

8. The ancestor of the dog is the gray wolf. The ancestor of the dog can be traced back to the gray wolf about 15,000 years ago. During the long-term domestication process, the gray wolf gradually evolved into today's dog. Although there are significant differences in morphology and habits between dogs and gray wolves, their genetic connections are still very close. This connection is not only reflected in genetics but also in behavior and social structure. Therefore, understanding dogs’ ancestors and evolutionary courses helps us better understand dogs’ behaviors and needs.

9. Dogs' loyalty comes from the gene

The loyalty qualities of dogs have always been praised by people. What you may not know, however, is that dogs’ loyalty qualities actually stem from their genes. Research shows that the areas in dogs’ brains related to emotional and social cognition are more developed than other animals, which allows them to better understand human emotions and needs. At the same time, dogs have also formed a habit of working closely with humans during their evolution, which allows them to survive and reproduce in human society. Therefore, a dog's loyalty is not only a behavioral expression but also a natural instinct and quality.