The personal behavior of a puppy rear-end accident seems to be different from species and age. All ages do that, and can even keep rear-end accidents until they are exhausted. So what causes the puppy to bite the tail after the rear-end accident?
Puppies like to bite their tails because they have unclean things at the tails. When there are unclean things on their tails, they also want to see what is wrong with their tails.
Puppies like to bite the tail because the anal glands block the puppies' anal glands, because the tail cannot be touched at will, only the basis is to bite the tail or rub the butt.
Except for several of the above pathophysiology, they still have rear-end collisions. It is very likely that because it is boring, if you find such a situation, give him a toy to play with.
However, puppies who leave their mothers are more likely to have forced thinking personal behaviors, and those puppies are more introverted compared to other puppies and have lower combat ability to deal with us.