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A [[mollusc]]  belonging to the class ''[[Bivalvia]]'', such as [[clam|clams]], [[oyster|oysters]], and [[scallop|scallops]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref> Bivalves are found worldwide in aquatic habitats, including many freshwater varieties.

A '''bivalve''' is a [[mollusc]]  belonging to the class ''[[Bivalvia]]'', including [[clam|clams]], [[oyster|oysters]], and [[scallop|scallops]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref> Bivalves are found worldwide in aquatic habitats, including many freshwater varieties.

The word '''bivalve''' means having two shells. The two bivalve shells are hinged together at one place and can be closed tightly by a powerful muscle, the ''adductor.''

The word '''bivalve''' means having two shells. The two bivalve shells are hinged together at one place and can be closed tightly by a powerful muscle, the ''adductor.''