What's inside a clam ... 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 two valves, or hinging ...

The large, marine snail is heavily in demand for its meat and iconic shell, which is used for décor and jewelry; overfishing and poaching have caused its decline in the Mexican Caribbean. “Under ...