Children draw sharks as follows:

First, draw the shape of a shark, and then draw its tail and eyes.

Continue to separate the shark's back and abdomen with an arc, then draw the shark's big mouth full of fangs, and then draw the shark's cheeks with diagonal lines.

Then draw a shark fin, and draw a few small fish around it to decorate it. Finally, color it, and the children will draw a shark.

sharks belong to Chondrichthyes, a subclass of vertebrates. They are marine, and a few species enter fresh water, which is a group of medium and large marine fish with fast swimming speed. ?

The endoskeleton of shark 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 teeth (parenchyma scales), and the teeth are diverse and have hard muscles, but the membranous bones never exist, and the skull is seamless. The upper forehead is composed of palatal cartilage, and the lower forehead is composed of Meier cartilage.

the body is long spindle-shaped. Branchial fissure is lateral, pectoral fin is normal, and it does not heal with the front edge of kiss; Dorsal position of 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 tooth-like scales make the skin look rough. The tail is strong, asymmetrical and upturned; Fins are pointed; The snout is pointed, protruding, with crescent mouth and triangular fangs under the snout. Sharks have no swim bladder, so they need to keep swimming to avoid sinking to the bottom.