
Image caption
Calcifying organisms come in many shapes and sizes. Crustaceans, such as the blue crab shown at right, and shellfish, including oysters (left) and mussels (center), are popular favorites at any seafood restaurant.
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Calcifying organisms come in many shapes and sizes. Crustaceans, such as the blue crab shown at right, and shellfish, including oysters (left) and mussels (center), are popular favorites at any seafood restaurant.