Fish - Wikipedia
WEBA 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
WEB15 May 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.
Fish Pictures & Facts - National Geographic
WEBFin fish like salmon have gills, are covered in scales, and reproduce by laying eggs. Eels, by contrast, have worm-like bodies and exceedingly slimy skin. Lungfish gulp air. Whale sharks, the ...
Fish: Different Types, Definitions, Photos, and More - A-Z ...
WEB3 Jan 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!
Fish - National Geographic Kids
WEBFish are vertebrates (vertebrates have backbones) that live in water. They breathe using special organs called gills.
Fish Portal | Britannica
WEBFish Portal | Britannica. Home Science Birds, Reptiles & Other Vertebrates Fish. Fishes have been in existence for more than 450 million years, and they have evolved to fit into almost every conceivable type of aquatic habitat, including both fresh and salt waters.
What are fish? - BBC Bitesize
WEBFish come in so many different shapes and sizes, how can we tell what is actually a fish? For a start, fish don't have legs and they live in water. Also, they don't breathe air.
Fish: The Ultimate Guide To Fishes & Fish Life - Active Wild
WEB28 Jul 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.
Freshwater fish facts and information - National Geographic
WEBReference. Freshwater Fish. Nearly half of all fish species live in fresh water, which means they swim in the rivers, lakes, and wetlands that make up less than 3 percent of Earth’s water supply....
Characteristics of fish - BBC Teach
WEBKS1 Science: Characteristics of fish. BBC Teach > Primary Resources > KS1 Science > The animal kingdom. Video Transcript. Video summary. A brief audio slideshow showing the characteristics of...