Function of dog tail:

1. Maintain body balance. When dogs walk, run, or turn, they maintain their balance by wagging their tails.

2. Express emotions. Dogs' tails wag in different amplitudes and frequencies in different moods. For example, when they are excited, they will wave their tails vigorously, and when they are nervous or scared, they will tuck their tails.

3. Help spread the flavor. Dogs have the habit of marking with urine, and the fanning of the tail is conducive to the spread of scent.

4. Drive away mosquitoes and flies. When there are mosquitoes and flies around the dog's body, it will shake its tail to fan away the mosquitoes and flies, or use its tail to fan the air, dissipate heat or disperse odors.

5. Beautify the appearance. Pomeranian or Samoyed can attract dogs of the opposite sex through their tail.