A snout is the protruding portion of an animal's face, consisting of its nose, mouth, and jaw. In many animals, the equivalent structure is called a muzzle, rostrum, or proboscis. The wet furless surface around the nostrils of the nose of some animals is called the rhinarium (colloquially this is the 'cold wet nose' of some animals). The rhinarium is often associated with a stronger sense of olfaction. The snout is considered a weak point on most animals: because of its structure, an animal can be easily stunned or knocked out, or even have its snout snapped by applying sufficient force.Dolichocephalic (long and thin snout): Rough CollieMesocephalic (medium length snout): English Cocker SpanielBrachycephalic (extremely flat snout): PugThe flews of the Black and Tan Coonhound overhang the lower jaw. A snout is the protruding portion of an animal's face, consisting of its nose, mouth, and jaw. In many animals, the equivalent structure is called a muzzle, rostrum, or proboscis. The wet furless surface around the nostrils of the nose of some animals is called the rhinarium (colloquially this is the 'cold wet nose' of some animals). The rhinarium is often associated with a stronger sense of olfaction. The snout is considered a weak point on most animals: because of its structure, an animal can be easily stunned or knocked out, or even have its snout snapped by applying sufficient force. Snouts are found on many mammals in a variety of shapes. Some animals, including ursines and great cats, have box-like snouts, while others, like shrews, have pointed snouts. Pig snouts are flat and cylindrical. The muzzle begins at the stop, just below the eyes, and includes the dog's nose and mouth. In the domestic dog, most of the upper muzzle contains organs for detecting scents. The loose flaps of skin on the sides of the upper muzzle that hang to different lengths over the mouth are called flews.