1 First, we draw the outline of the shark.

Then draw the shark's tail on the right.

Then draw the shark's stomach and mouth, draw the eyes, and then draw the dorsal fin and ventral fin.

Finally, we color it so that the lovely shark can be drawn.

Extension:

Sharks belong to cartilaginous fish, a subclass of vertebrates, and live in the ocean. A few species enter fresh water, which is a group of medium and large marine fish with fast swimming speed. ?

The endoskeleton of sharks is completely composed of cartilage, which is often calcified, but there is no real bone tissue. The exoskeleton is not developed or degenerated. The body is often covered with skin teeth (thin-walled scales), with various teeth and hard muscles, but the membranous bone never exists and the skull is seamless. The upper forehead is composed of palatal cartilage and the lower forehead is composed of Mayer cartilage.

The body is long spindle-shaped. Lateral branchial fissure, normal pectoral fin, not healing with anterior snout; Dorsal position of the north fin; Crooked tail type. ?

The body is spindle-shaped with cheeks on both sides of the head, but it is similar to ordinary fish. With a few exceptions, the typical shark skin is hard and dark gray, and the dentate scales make the skin look rough. The tail is strong, asymmetrical and upturned; Fins are pointed; The nose and mouth are pointed and protruding, the mouth is crescent, and there are triangular fangs under the nose and mouth. Sharks don't have swim bladders, so they need to swim constantly to avoid sinking into the water.

80% species of sharks are below 1.6m in length, and most sharks are small fish. Among sharks, the largest whale shark, also called Whale Pattern, is 20 meters long and weighs 7000-8000kg, making it the king of fish. The smallest shark is the wide-tailed small-horned shark (also called small-horned mackerel). Mature male fish 15cm, female fish 20cm. The size difference between big and small sharks is more than 100 times.

At present, a giant man-eating shark has been found, which is a tertiary stratigraphic fossil with a tooth length of 15.24cm and an estimated body length of 90 m. The American Museum of Natural History exhibits this bimaxillary model, which can accommodate six people standing in their mouths.