Seafood is often a crowd-pleaser, and oysters even have their own day celebrated every August 5th. These mollusks require a ...

This is my pearl,' added Bryant, parading the calcium carbonate-coated particle ... of sand or some other irritants gets into an oyster shell, spurring the oyster to coat itself with thin layers ...

Pearls are made by marine oysters and freshwater mussels as a natural defence against an irritant such as a parasite entering their shell or damage to their fragile body. The oyster or mussel slowly ...