Step 6: Draw a small rectangle-like shape below the muzzle for the gums. Add a row of small, triangle-like shapes under the gums for the wolf's font set of teeth.
Step 7: Draw a long triangle-like shape on either side of the gums for the snarling wolf's big canine teeth.
Step 8: Draw a curved line, similar to a long letter U, underneath for the lower part of the mouth.
Step 9: Draw the wolf's bottom row of teeth as triangle-like shapes. The teeth on either end should be bigger.
Step 10: Draw a couple of curved lines between the wolf's teeth to create the tongue.