Indeed, pearls from freshwater mussels lie at the center of the liveliest activity in pearling today. Natural freshwater pearls occur in mussels for the same reason that saltwater pearls occur in ...

Learning about how they're made can actually aid in understanding how best to care for them. Pearls are formed inside a mussel or oyster (or any mollusk with a shell) as a form of self-defense—their ...

About 200 years ago pearl mussels were harvested for, as the name suggests, pearls. However, the name can mislead - only about one per cent of them contain this hidden 'treasure' (and most of ...

Pearl mussels are very sensitive to polluted water which can be caused by artificial fertiliser, farm slurry, sewage, or industrial waste. River bed silt also kills the mussels ...

In the assessment, the experts have identified three areas where first of all the pearl mussel requires protection ARKHANGELSK, February 6. /TASS/. Specialists of the Laverov Federal Research ...

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 ...

A retractable foot, a siphon for sucking up water, powerful muscles, and, sometimes, a pearl. And you thought ... Like oysters and mussels, clams are bivalves, a kind of mollusk that's encased ...

The shiny layer inside the shell is called the nacre, or mother of pearl. HABITAT: Freshwater mussels live on river bottoms and most require clean, flowing water to survive and reproduce. RANGE: ...

Helsingin Sanomat reports that forestry giant Stora Enso cannot use the trees it felled near the Hukkajoki River last August in an incident that destroyed critical freshwater pearl mussel habitat. The ...

About 200 years ago pearl mussels were harvested for, as the name suggests, pearls. However, the name can mislead - only about one per cent of them contain this hidden 'treasure' (and most of ...