<h2>Whale sharks, the largest of all fish, may grow eighteen meters long. Sharks are of different sizes. The smallest shark may measure only ten centimeters long. Most sharks have gray leathery skin covered with small, sharp, pointed scales. Sharks live in different places. Some kinds of sharks live in the depths of the ocean; others are found near the surface. Some species live in coastal waters; others dwell far out at sea. A few species can even live in fresh water.</h2><h3>or</h3>
