You can draw a small fish, draw the outline of the fish, draw the five senses, draw the fins and fill in the corresponding colors. Fish is the oldest vertebrate. They inhabit almost all aquatic environments on earth-freshwater lakes, rivers, saltwater seas and oceans. There are about 32,000 kinds of fish in the world. Fish live in water, distributed in the ocean and fresh water, of which two thirds live in the ocean and the rest live in fresh water. What a dream world that can be opened.