<P> The gizzard, also referred to as the ventriculus, gastric mill, and gigerium, is an organ found in the digestive tract of some animals, including archosaurs (pterosaurs, crocodiles, alligators, and dinosaurs, including birds), earthworms, some gastropods, some fish, and some crustaceans . This specialized stomach constructed of thick muscular walls is used for grinding up food, often aided by particles of stone or grit . In certain insects and molluscs, the gizzard features chitinous plates or teeth . </P> <P> The word gizzard comes from the Middle English giser, which derives from a similar word in Old French, which itself evolved from the Latin gigeria, meaning giblets . </P>

Where does gizzards come from on a chicken
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