41 Types of Fish (Most Popular Saltwater and Freshwater Fish)
网页1. Saltwater Fish. Sword Fish. Swordfish are commonly known as broadbills and are the only species in the Xiphiidae family. They are large predatory fish that migrate as the seasons change. They are popular sports fish and have elongated round bodies. They thrive in the temperate and tropical regions of the Indian, Pacific, and Atlantic Ocean.
Fish Pictures & Facts - National Geographic
网页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...
Fish - Wikipedia
网页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 ...
Fish | Definition, Species, Classification, & Facts | Britannica
网页2024年9月29日 · 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.
Fish: Different Types, Definitions, Photos, and More
网页2023年1月3日 · 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.
Types Of Fish: Examples Of Fish From Around The World - Active …
网页2022年7月13日 · There are around 34,800 fish species. All belong to one of three main types of fish: jawless fish, cartilaginous fish (sharks & rays) and bony fish (the largest group of fish). Fish are found as far north as the Arctic and as far south as Antarctica. Some fish breathe air, and some fish are found over 5 miles below the surface of the sea.
30 Different Types of Fish: Fun Facts and Pictures - TRVST
网页2023年7月30日 · Do you want to know more about marine life? Check out these general fish facts! Then, read how fishing impacts our seas and its inhabitants. The Three Main Groups of Fish. Fish are a diverse group of animals, and they are usually classified into three main fish groups: Jawless Fish (Agnatha) - This group is made up of hagfish and lampreys.
Fish: The Ultimate Guide To Fishes & Fish Life - Active Wild
网页2022年7月28日 · 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.
5 Characteristics That All Fish Have in Common - Sciencing
网页2018年4月19日 · Fish are diverse — each species has evolved to live successfully in its specific underwater environment, from streams and lakes to the vast expanse of the ocean. Despite the thousands of different species, all fish share common evolutionary adaptations that help them thrive in their watery domain.
Freshwater fish facts and information - National Geographic
网页There are more than 800 known freshwater fish species in North America alone. Worldwide, the number is over 10,000 species. Some species of freshwater fish, such as salmon and trout, are called...