In the sand surrounding coral reefs, the giant clam reigns supreme; they are massive, multi-colored, and statuesque. As the largest living bivalve mollusk, the giant clam acts as a lynchpin for its ...

Giant clams, which can grow to weigh more than 200 kilograms (440 pounds), have long been traded for their shells, which are carved into decorative items, as well as for food and the aquarium trade.

The giant clam, known for its colorful cape-like mantle, wavy shell and astonishing size, is in danger of going extinct after its population plunged by more than 80% over the last century, according ...

Q. One exhibit at the Lightner Museum in St. Augustine, Florida, is a giant bear paw clam shell from the South Pacific. The shell is huge, big as an automobile tire. Is it real? How big do clams get?