Fish. The mullet (Mugilidae) found in estuarine waters worldwide, and the gizzard or mud shad, found in freshwater lakes and streams from New York to Mexico, have gizzards.

What types of fish have gizzards?

There are a few types of fish with gizzards. The gillaroo, a type of trout found in Irish Lake in County Fermanagh, uses its gizzard to help it digest water snails. Mullets, another fish with a gizzard, can be found in estuary waters around the world.

What other animals have gizzards?

It might not surprise you but other poultry have gizzards too, like turkeys, ducks, fowl, emus, doves, and pigeons. A little more surprising might be that crocodiles, alligators, earthworms, some fish and crustaceans, and even dinosaurs have gizzards.