Oysters and clams are two very popular edible mollusks or bivalves. Clams refer to a marine bivalve mollusk with shells of equal size. They spend most of their lives on the ocean floor partially buried in the sand. The two shells of the clams are connected together by two adductor muscles. Clams have a powerful burrowing foot as well. They always hide away in the sediments. Oysters refer to any of the bivalve mollusks with rough irregular shells that are often eaten raw. They live in marine and brackish habitats. The shell of the oysters is highly calcified and somewhat irregular in shape. The shape of the shell is oblong rather than oval shape. The two shells are connected to each other by a small hinge. Oysters have a special
