water gills

How Many Species Of Fish Are There Exactly?

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According to FishBase, 34,300 species of fish had been described as of September 2020. That is more than the combined total of all other vertebrate species: mammals, amphibians, reptiles and birds. What are the main fish species? Fishes are typically divided into three groups: superclass Agnatha ( jawless fishes ), class chondrichthyes (cartilaginous fishes), and … Read more

What Are The 7 Classification Of Fish?

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This hierarchical system moves from largest and most general to smallest and most specific: kingdom, phylum, class, order, family, genus, and species. What are the five categories of fish? Hagfish, lampreys, cartilaginous fish, ray-finned fish, and lobe-finned fish are the 5 common classes of fish. What are the 2 major categories of fish? Scientists classify … Read more