Licking is a way our pet dogs can greet us, say 'glad you're back!' and strengthen their relationship with us, lick the mouths of the adults as a greeting to stimulate them to regurgitate. The puppies eat this regurgitated food as they are weaned from their mother and begin to eat solid food. As the puppies grow older, the licking becomes a way of welcoming others back into the pack and increasing the bonds between the pack members. |