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3 days ago · Shark, any of numerous species of cartilaginous fishes that make up the order Selachii (class Chondrichthyes). Most species have a tough skin that is dull gray in color and roughened by toothlike scales. The mouth contains sharp triangular teeth. Sharks lack a swim bladder and must swim to keep from sinking.
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Facts. Weight. up to 11 tons. Length. 8 in.-40 ft. Habitats. Oceans. 1,000. There are over 1,000 species of sharks and rays. With fossil records dating back 400 million years, sharks have outlived the dinosaurs and many other forms of life currently on earth.
Jun 13, 2005 · A round-up of facts about one of the most iconic fishes. By Brian Handwerk. June 13, 2005. • 7 min read. The United States averages just 16 shark attacks each year and slightly less than one...
With over 500 species of sharks, there are many different shark sizes and shapes. The largest shark (and also largest fish) is the gentle whale shark ( Rhincodon typus ), which can reach lengths of 39 feet (12 meters). The smallest is the dwarf lantern shark ( Etmopterus perryi) clocking in at only 8 inches long.
Jul 4, 2022 · published 4 July 2022. Older than the dinosaurs and ecologically vital, sharks deserve more than our fear. Great white sharks aren't as scary as you might think.(Image credit: by wildestanimal...
With an estimated 126 different species, this order of sharks is found in nearly every marine habitat. These sharks have long snouts with a short mouth, five (5) gill slits, two (2) dorsal fins and lack an anal fin. Some deepwater Squaliformes are bioluminescent. Bramble shark. Cookiecutter shark.
Animals. Reference. Great white sharks. Common Name: Great white shark. Scientific Name: Carcharodon carcharias. Type: Fish. Diet: Carnivore. Group Name: School, shoal. Average Life Span:...
