For other uses, see Fish (disambiguation).
Fish
A giant grouper at the Georgia Aquarium, seen swimming among schools of other fish
The ornate lionfish as seen from a head on view
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Included groups
Hagfishes
Lampreys, sharks and rays
Ray-finned fishes
Coelacanths
Lungfishes
Excluded groups
Tetrapods
A fish is any aquatic vertebrate animal that is typically ectothermic (or cold-blooded), covered with scales, and equipped with two sets of paired fins and several unpaired fins. Fish are abundant in the sea and in fresh water, with species being known from mountain streams (e.g., char and gudgeon) as well as in the deepest depths of the ocean (e.g., gulpers and anglerfish).
Food prepared from fish is also called fish, and it is an important food source for humans. They are harvested either from wild fisheries (see fishing) or farmed in much the same way as cattle or chickens (see aquaculture). They are also exploited by recreational fishers and fishkeepers, and are exhibited in public aquaria. Fish have had a role in many cultures through the ages, ranging from deities and religious symbols
Fish
A giant grouper at the Georgia Aquarium, seen swimming among schools of other fish
The ornate lionfish as seen from a head on view
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Included groups
Hagfishes
Lampreys, sharks and rays
Ray-finned fishes
Coelacanths
Lungfishes
Excluded groups
Tetrapods
A fish is any aquatic vertebrate animal that is typically ectothermic (or cold-blooded), covered with scales, and equipped with two sets of paired fins and several unpaired fins. Fish are abundant in the sea and in fresh water, with species being known from mountain streams (e.g., char and gudgeon) as well as in the deepest depths of the ocean (e.g., gulpers and anglerfish).
Food prepared from fish is also called fish, and it is an important food source for humans. They are harvested either from wild fisheries (see fishing) or farmed in much the same way as cattle or chickens (see aquaculture). They are also exploited by recreational fishers and fishkeepers, and are exhibited in public aquaria. Fish have had a role in many cultures through the ages, ranging from deities and religious symbols
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