It is said that dogs nibble because...

Why Do Dogs Nibble?

Nibbling is natural in dogs. Nibbling is demonstration of affection; in some dogs it is also a grooming behavior. They just chew or nibble out of boredom or during teething. A dog may nibble as a form of communication or greeting. Nibbling is not an aggressive behavior, but rather a sign of affection. Unless the person or animal being "nibbled" is bothered by the contact, it is not a negative behavior.

Young dogs nibble just for your attention or compete in a game with you. Some dogs when they are not feeling well will nibble or nip. Dogs will also nibble or chew on areas of their body to express pain and discomfort. This can sometimes exacerbate a wound.

Related dog questions: Why do dogs bite? Why do dogs bite their paws?

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