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Fish

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

Fish

Baleen

Animals; Fish

A hard, flexible material that hangs in plates from the upper jaw of certain whales. Baleen is used by whales to strain food from seawater.

Starfish

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.

Bony fish

Animals; Fish

A fish that has a skeleton made of bone rather than cartilage. Most of the fish are bony fish.

Gill

Animals; Fish

An external organ used by aquatic animals such as fish, to extract oxygen out of the water.

Dorsal fin

Animals; Fish

Large fin on the back of marine animals such as fish, sharks, whales and dolphins.

Pelvic fins

Animals; Fish

The last pair of fins on the body of a fish, found on the underside, close to the tail.

Pectoral fin

Animals; Fish

One of the two pairs of fins that are found at the front of the body of a fish.

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