ATHENS, Greece (AP) — A fan mussel found only in the Mediterranean was officially added to the list of critically endangered species, after scientists recorded a dramatic decline in its population ...

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The Noble Pen Shell, part of the Pinnidae family, is found in the Mediterranean Sea and is the largest of all pen shells, reaching up to 4 feet in size. This shell is known for its beautiful copper ...

The Bailey-Matthews Shell Museum on Sanibel features many unique shells. This is a closer look at a unique shell at the Baily-Matthews Shell Museum on Sanibel: The Noble Pen Shell ...