Come nightfall, the giant clam closes its shell. The mantle on its shell also ... The more they are harvested for their large ...

LSU Ph.D. candidate Jacob Warner drilled along the clam's shell to collect samples at each interval of time during the clam’s lifespan to get a snapshot of the ocean temperature as the shell grew.

But as it turns out, a foot is just one of the many bizarre features you'll find inside a clam. Like oysters and mussels, clams are bivalves, a kind of mollusk that's encased in a shell made of ...