Although dogs have different breeds, sizes, and personalities, and there are many breeds of dogs alone, even though there are so many differences, dogs still have many things in common. The editor is here to help you List them one by one.

Dogs regardless of breed or size all have amazing communication skills

1. Strong Power of transportation
The structure of dogs' hands and feet allows them to quickly kick forward or perform leaping movements when necessary, which is used to chase or catch their prey. Therefore, they have small and thick feet, and they use their front feet to move; their front legs are soft and flexible, and their muscles are only used to interact with the trunk; their hind legs are strong and powerful.

For humans , dogs can be said to be color-blind

2. Color-blind eyes
Dogs are binary color visioners, so dogs are color-blind by human standards1 , 2 And because the dog eyeball lens is flatter than that of humans, they cannot see too many details of objects; on the other hand, dog eyes are more sensitive to light and movement than human eyes. Some breeds of dogs, especially the best sighthounds, have a vision range of 270° (humans only have 100° to 120°), while broad-headed dogs have a smaller forward vision range. Some, only 180°. 1, 2
3. Amazing hearing
The limit of dogs’ perception of low-frequency sound waves is 20 to 70Hz (16 to 20Hz for humans), and the limit of perception of high-frequency sounds The limit is 70,000 to 100,000Hz (20,000Hz for humans) 2. In addition, dogs’ ears can be unblocked, which can help them quickly and accurately locate the source of the sound. A dog can locate sounds faster than others, and they hear the sounds faster.Isolation is also four times further away than humans.

Dogs' agility is widely used in search and rescue, drug hunting and other tasks

4. Agility Sense
Domestic dogs have nearly 220 million sensory cells in an area the size of a pocket handkerchief (humans have only 5 million in an area the size of a postage stamp). Some selected breeds are even capable of sniffing and hunting. It is too simplistic to think that although the chemical detector in the dog's nose can detect chemicals, the dog does not really understand them; although there are still disputes, at present It can be seen that what is certain is that dogs have the ability to distinguish two different types of smells when tracking, such as the smell of air brought by someone or the smell of something passing by. Generally speaking, the taste of earth can be preserved for a long time. After tracking these two types of smells for a period of time, the situation will become very different: the air smell will be intermittent but the smell is still strong, and the smell of the earth will always be able to be repeatedly explored by dogs. However, it is also more susceptible to infection than other flavors. Regarding everything, what can be firmly believed is that dog trainers cannot teach dogs how to outperform their natural abilities in order to track better; what dog trainers can learn is that, with appropriate incentives, dogs can Dogs focus their attention on one flavor and ignore other flavors. Untrained dogs may be more interested in other flavors. For scent hunting, such as searching for illegal cargo on ships, it is perfect for dogs. This difficult task requires long-term training to encourage them to continue.
5. Perception of human emotions
All dogs have an amazing ability to master complex social behaviors and understand different body language and sounds. Like many other predators, Dogs can also react and learn from each other in very special ways. Hybrid cooperative social activities have very high requirements for dogs to express their perceptions or even communicate their processing emotions through body language. This is even higher than the requirements for humans, because humans can also use language to achieve the same goal. Psychologically, this behavior is inseparable from the movement of the dog's facial muscles under a large amount of nerve stimulation. The nerves will cleverly control facial expressions to show a variety of different emotions; it can be compared with cats, which only have facial expressions on their faces. There are relatively few nerves controlling facial muscle movement, and the result is that cats can only show limited emotions through their faces. Not using language to understand and show a variety of different emotions allows dogs to have a deeper understanding of humans.The master's emotions, and they are often better than humans using words. Most dog owners can tell you a lot about their dogs hearing the sound of their footsteps coming home.

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