The left side of the body of the fish is often the left side of the body, lying on the bottom of the sand or lurking in the sand, only the head exposed, and the color of the left side of the body can change with the color of the habitat.
Originally, juvenile fish have two eyes on each side of the body, but because the left side of the body lies against the sand, the right eye is gradually oriented to the sunlight, and then it is shifted to the left side of the body.
Fresh left mouth fish, the body is brown, pattern color changes with the environment, left mouth fish out of the water will die, can not be raised.
Fresh left-handed fish are brownish in color, and the pattern changes with the environment.