Home Animals of the World Animal Photos The Animal Kingdom Animal Activities About Us Shop Contact Us	BivalviaCharacteristics of Bivalves
	- Most often bivalves have two symmetric shell halves. - Bivalves have a muscular foot that can be used for various reasons, including digging. - Bivalves do not have brains. - The mantle is the exterior part of the bivalve that excretes the calcium needed to form the shell(s). - If two shells are present they are held together at one end by the ligament. Examples of bivalves include oysters, mussels and clams.
			© Jim Boardman			© Jimwormold