But as it turns out, a foot is just one of the many bizarre features you'll find inside a clam. Like oysters and mussels, clams are bivalves, a kind of mollusk that's encased in a shell made of ...

Popular species of clam include: American hard shell clams – large clams with a thick, heavy shell Palourdes (also known as Manilla clams) – clams with a pretty, marbled shell that are ...