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A fish (pl.: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits. Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and ...
Apr 23, 2024 · fish, any of approximately 34,000 species of vertebrate animals (phylum Chordata) found in the fresh and salt waters of the world. Living species range from the primitive jawless lampreys and hagfishes through the cartilaginous sharks, skates, and rays to the abundant and diverse bony fishes.
About Fish. All fish share two traits: they live in water and they have a backbone—they are vertebrates. Apart from these similarities, however, many of the species in this group differ markedly...
Fish are vertebrates (vertebrates have backbones) that live in water. They breathe using special organs called gills.
Jan 3, 2023 · Fish are the most diverse group among vertebrates, with over 33,000 different types of fish species. No one really knows how many different types of fish exist in the world, more are being discovered constantly. We may soon have over 35,000, or even 40,000 known species!
Jul 28, 2022 · A fish is an aquatic vertebrate with fins and gills. The body of a typical fish is streamlined and covered in protective scales. Around half of all known vertebrates are fish, making fish the dominant vertebrate animals on the planet. Fish are found in both salt and freshwater habitats in most parts of the world.
fish, Any of more than 30,000 species of predominantly cold-blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes through the cartilaginous sharks, skates, and rays to the abundant and diverse bony fishes. Species range in length from 0.4 in. (10 mm) to more than 60 ft (20 m).
