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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

Gill

Animals; Fish

Et eksternt organ bruges af akvatiske dyr som fisk, til at trække ilt ud af vand.

rygfinne

Animals; Fish

Stor fin på bagsiden af havdyr som fisk, hajer, hvaler og delfiner.

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