The clam may have a built-in fortress with its shell ... and they aren’t picky about food. While they prefer hard-shelled ...

The shellfish species, also known as Stimpson’s hard clam or quahog, is renowned for its longevity and inhabits waters not only off Tohoku and farther north in Japan but also Russia.

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 ...