It’s my second day at the Tucson Gem Show and I’m standing in front of the Expo Center, examining the fossilized shell of the world’s largest giant killer clam.

Giant clams have a dull outer shell, as well as a weighted shell hinge that helps them point their lips up toward the sunlight. Perhaps the iridescent cells, called iridocytes, play an optical ...

The Philippines is shell-ebrating after it seized Friday more than 150 tons (coast guard says 200, PCSD says 150) of fossilzed giant clams worth nearly $25 million.

The Tridacna gigas, better known as a giant clam, or taklobo in the Philippines, is the largest living bivalve mollusk. They can grow larger than 4 feet across and weigh more than 400 lbs.

The Giant Clam Shell. ... Ironically, much like their biggest predator, humans, giant clams only open up when they find the light. Watch the Video. Click here to watch the video.

The giant clam, or Tridacna gigas, is the world's largest marine bivalve mollusk, a group of invertebrate animals with two-part shells. It can grow up to 4.5 feet in length and weigh more than 700 ...

The Philippines on Monday said it seized a large hoard giant clam shell pieces on a remote western island, a key point in the illegal global trade of the marine species. Authorities unearthed 336 ...

They are the largest bivalve mollusks in the world. Typically, giant clams weigh more than 440 pounds and span up to 47 inches wide. ... “I would say don’t buy any giant clam shells.

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, with its vibrant, cape-like mantle and large, wavy shell, faces a dire future with its population plunging by over 80% in the past century, according to a new assessment led by Dr.

The giant clam, or Tridacna gigas, is the best-known species of giant clams. It is the world’s largest marine bivalve mollusk, a group of invertebrate animals with two-part shells. It can grow up to 4 ...

They are the largest bivalve mollusks in the world. Typically, giant clams weigh more than 440 pounds and span up to 47 inches wide. ... “I would say don’t buy any giant clam shells.