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Large category that can include any member of the classes Cephalochordata (lancelets), Agnatha (hagfish and lampreys), Elasmobranchii (sharks and rays), Holocephali (ghost sharks), Osteichthyes (bony fish), Gastropoda (gastropods), Pelecypoda (bivalves), Cephalopoda (cephalopods), and Crustacea (crustaceans).

Contributors in Fish



Animals; Fish

One of the thin, flat parts that stick out from the body of fish and some other water animals.


Animals; Fish

A wide, flat limb that is used for swimming. Flippers are found on water animals such as whales.


Animals; Fish

A type of sea animal that has a body shaped like a star. The arms of a starfish, are usually five in number.


Animals; Fish

A type of fish that has organs like lungs for breathing air. Lungfish also have gills like other fish.

jawless fish

Animals; Fish

A type of fish that has no jaw and looks like an eel. These are very ancient group of fish.


Animals; Fish

A type of water animal with a soft body that is shaped like an umbrella or bell.


Animals; Fish

A long, slippery fish with a snake like body but no scales. Eels usually migrate from fresh water to salt water to lay eggs.

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