The ancestors of dogs are originally wolves. It is normal for them to imitate wolf howling, and it does not indicate anything. In addition to imitating wolf howling, dogs also inherit the hierarchical consciousness of wolves. They only obey those who are older than them. It is a high-level animal, so when raising a dog, parents must make themselves a higher level than the dog.

Tip:

Dogs will also dig their nests, hide food, eat grass and other behaviors. These are also wolf behaviors. There is no need for parents to over-correct, as this will not affect to their normal lives.