The clam uses a tiny foot to burrow into the seafloor as it grows. Its shell can end up several feet ... to New Zealand and Japan, but the largest geoducks reside on North America's Pacific ...

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 ...

Giant clams — the largest grow to a shell length of 54 inches and weigh nearly 500 pounds — live in coastal areas next to coral reefs in the Red Sea and the Indo-Pacific. Giant clams are generally ...