Printouts Clams are animals that burrow under the sea floor. They are bivalves, mollusks that have two shells that protect a soft body. There are over 15,000 different species of clams worldwide. Most clams are only a few inches long.
Clams come in many colors, including shades of brown, red-brown, yellow, cream, etc.
When a clam is threatened, most clams will pull their soft body into into the shells and close the shells tightly for protection. The foot is used to burrow into the sand.