A layer of blubber under their skin keeps them warm in the cold sea, helps to make them streamlined, and helps them to be buoyant. Draw the long slender rostrum of the spinner dolphin with a long slightly upturned mouth. Dolphins have teeth, with the number varying from species to species. Spinner dolphins usually have between 90 and 130 teeth. Explain that they use their teeth to capture and kill their prey and swallow their food whole.
Spinners have black lips.
Use a dark crayon to color the lips. Draw the eye near the end of the mouth, low on the side of the face. Spinners have dark shading around and below their eyes and going down to the belly at a backward angle. Draw the single blowhole above and slightly behind the eye on the top of the head. Review the fact that mammals breathe air.