What is the use of a dog's tail as "man's most loyal friend"? How long is the life span?

Dog is a kind of canine mammal, which is distributed all over the world. It began to be domesticated by human beings tens of thousands of years ago, and can be regarded as the most loyal friend of human beings. There are many kinds of dogs, which are the most likely animals raised as pets and are loved by everyone. Dogs wag their tails every time they see someone they are familiar with. What is the use of that dog's tail? How long is the life span?

What is the function of a dog's tail?

1. Keep your balance

In the process of walking or running, dogs' tails play a role in maintaining body balance, which is why they can jump flexibly, climb slopes and so on.

2. Spread the special smell

Dogs meet new people in a strange way and ask each other's buttocks. Because the dog's butt has a special gland that secretes a special smell, and the tail keeps shaking like a fan, allowing the smell to spread further away.

3. Express your emotions

When the dog is happy, he will keep wagging his tail, especially when the owner comes from afar, he is very affectionate and has a big tail. If the dog is very scared, he will clench his tail and appear very cautious.

Generally speaking, a dog's tail is like another kind of language. The shape and size of the tail vary with the type of dog, but the meaning is about the same.

Second, how long is the life span of dogs?

The lifespan of dogs is mostly more than ten years, but the lifespan of different breeds and different feeding methods are different. Like the general small or medium-sized dogs in the seven years after birth, large dogs in the five years after birth has slowly entered the old age.

If it is a healthy dog, the life expectancy is calculated as follows: generally speaking, one year after birth can be counted as 17 years old, two years will be 23 years old, three years will be 28 years old, and every year will be added to the appearance of four years old. so a dog born ten years old can be counted as 55 years old for human beings. Now, with the improvement of breeding level, the life span of dogs is also a little longer, some dogs can live for 20 years.

Once the dog enters the old age, it will be weak and degenerate in its senses, and its activities will become very slow, so we have to take care of it more attentively. For example, if you take him for a walk, you should pay attention to the obstacles ahead and cover him with a warm blanket when it is cold or sleeping. We should regularly take him to the pet hospital for health examination, in case some diseases delay treatment, compare it to our human good partner, we should take good care of it, and should not abandon it when we decide to keep a dog.