Why do Dogs drool

By Jerry Welsh Dogs have this reputation for being droolers and chewers of bones. Fido is often illustrated with a bone on its mouth or with a spray of drool. Saliva is explained by experts as a necessary fluid that has an important role in the process of digestion. This fluid secreted by the salivary glands serves as a lubricant and moisturizer that aids in the preliminary process of digestion.