Hi, have you ever wondered what a fish is? Fishes are aquatic vertebrates that live, and move in the sea. Fishes has internal organs that help it stabalize in ocean depths nad many fins to help swim. Scales protect the fish with mucus. I know that the fish doesn't stop swimming or it will drown. Fishes use gills to filter water and obtain oxygen.
Fishes have a heart, gill, anus, intestines, stomach, and a swim bladder. Fishes live longer in the ocean that in an aquarium or a fish tank. Fishes are interesting to study because if you would approach a fish behind it, it would sense you without turning its head because its eyes are separated. Fishes are great symbols in acts or movies. They are warm-blooded and cold-blooded fish. Thje term fish is most precisely used to describe any non-triapod chordate. Most fishes travel in groups and unlike sharks fishes live longer becasue the bones of charks are made of soft-bone called cartilage except its teeth. Fishes, such as blue tuna should be protected because thousand of different kinds of fish species are going extinct because of overfishing and ocean pollution.
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