Fish - the ultimate guide to fishes & fish life. What is a fish? What type of animal is a fish? Is a fish a vertebrate? How do fish breathe? A fish is an aquatic, anamniotic, gill -bearing vertebrate animal with a tough cranium to protect the brain, 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 acanthodians. In a break from the long tradition of grouping all fish. A fish is any of approximately 34,000 species of vertebrate animals (phylum Chordata) found in the fresh and salt waters of the world. Living fish species range from the primitive jawless lampreys and hagfishes through the cartilaginous sharks, skates, and rays to the abundant and diverse bony fishes. Discover 120 Types of Fish with detailed identification, habitats, behaviors, and fascinating facts. Perfect guide for enthusiasts and educators. Fish are vertebrates (vertebrates have backbones) that live in water. They breathe using special organs called gills. Fish are aquatic vertebrates. They usually have gills, paired fins, a long body covered with scales, and tend to be cold-blooded. “Fish” is a term used to refer to lampreys, sharks, coelacanths, and ray-finned fishes, but is not a taxonomic group, which is a clade or group containing a common ancestor and all its descendants. […] Understand types of fish with names in English with Pictures, including food fish, aquarium fish, market names, and fish types people often confuse. Fish as food Channa striata stuffed with Thai herbs Fish for sale in baskets at the Dubai Fish Market Many species of fish are caught by humans and consumed as food in virtually all regions around the world. Their meat has been an important dietary source of protein and other nutrients in the human diet. Your destination for news, pictures, facts, and videos about fish. Fish Blue shark Head-on view of a red lion-fish Carp Fish come in many shapes and sizes. This is a sea dragon (kira), a close relative of the seahorse. They are camouflaged as floating seaweed. [1][2] Dunkleosteus, a giant armoured arthrodire of the later Devonian. Up to 6 metres long, it lived in the Inland seas of North America. [3].