Teeth baring: When a dog’s lips cur

Teeth baring: When a dog’s lips curl back this show that the dog has a strong urge to bite.This is an unconscious reflex; designed to get the soft flesh of the lips away from the teeth before the dog bites; and is often misinterpreted as a way of communicating aggressive intent. For example; many dogs will curl their lips back into a “snarl” when they take a cookie or bone. A rare form of teeth baring is seen in the form as a submissive grin.