A retractable foot, a siphon for sucking up water, powerful muscles, and, sometimes, a pearl ... are small clams, like these, which are often used for cooking. And then there are giant clams ...

Giant clams can grow larger than one metre across, and weigh up to 250 kg Around 200 tonnes of illegally harvested giant clam shells worth nearly $25 million (£18 million) have been seized in the ...

Over the last century, the giant clam population has dropped by more than 80 percent, putting the species in danger of ...

A couple who found a pearl inside a clam while on a date years ago has turned the gemstone into a precious piece of jewelry. Ken Steinkamp and Sandy Sikorski were dining at a Rhode Island ...