The whale shark (Rhincodon typus) is a slow-moving, filter-feeding carpeting shark and the largest noted extant fish species. The biggest confirmed individual had a length of 12. 65 m (41. 5 ft) and a weight of about 21. 5 various t (47, 000 lb).[8] The whale shark holds many documents for size in the animal kingdom, most notably being by far the largest living nonmammalian vertebrate. It is the sole member of the genus Rhincodon and the sole extant member of the family Rhincodontidae which usually belongs to the subclass Elasmobranchii inside the class Chondrichthyes. Before 1984 it was classified as Rhiniodon into Rhinodontidae.
The whale shark is found in open marine environments of the tropical oceans and is also rarely found in the water beneath 21 °C (70 °F).[2] Modeling advises a lifespan of about 75 years, but measurements possess proven difficult.[9] Whale sharks have substantial mouths and are filter feeders, which is a feeding mode that happens in only two other fishes, the megamouth shark as well as the basking shark. They supply almost exclusively on plankton and small fishes, and pose no threat to humans.
The species was distinguished in April 1828 after the harpooning of a 5. 6 m (15 ft) specimen in Table Bay, South Africa. Andrew Smith, a military doctor associated with English troops stationed in Gabardine Town, described it the next year.[10] The name "whale shark" refers to the fish's size, being as large as some types of whales,[11] and to its being a filter feeder like baleen whales.
Whale sharks have a mouth area that can be 1 . 5 m (4. 9 ft) extensive, containing 300 to 450 rows of tiny teeth and 10 filter pads which it uses to filter foodstuff.[12] Unlike a great many other sharks, whale sharks' mouths are located at the front of the brain rather than on the underside with the head.[13] Whale sharks have five significant pairs of gills. Your head is wide and level with two small eyes at the front. Whale sharks will be grey with a white abdominal. Their skin is marked with pale yellow places and stripes which are exclusive to each individual. The whale shark has three prominent ridges along its factors. Its skin can be about 10 cm (3. dokuz in) thick. The shark has a pair of dorsal bout and pectoral fins. Juveniles' tails have a larger top fin than the lower b, while the adult tail becomes semilunate. The whale shark's spiracles are just behind their eyes.
The whale shark is the largest non-cetacean animal in the world. The average size of adult whale sharks is approximated at 9. 8 meters (32 ft) and on the lookout for t (20, 000 lb).[8] Several individuals over 18 m (59 ft) in length have been reported.[14] The largest verified specimen was caught in 11 November 1949, near Effaré Island, in Karachi, Pakistan. It was 12. 65 m (41. 5 ft) very long, weighed about 21. 5 various t (47, 000 lb), and had a girth of 7 m (23 ft).[8] Stories exist of vastly larger specimens -- quoted lengths of 18 m (59 ft) and 45. 5 t (100, 000 lb) are common inside the popular literature, but zero scientific records support their existence. In 1868, the Irish natural scientist Edward cullen Perceval Wright obtained a variety of small whale shark specimens in the Seychelles, but said to have observed specimens more than 15 m (49 ft), and tells of shark specimens surpassing 21 m (69 ft).
Within a 1925 publication, Hugh M. Smith described a huge dog caught in a bamboo seafood trap in Thailand in 1919. The shark was too heavy to pull ashore, yet Smith estimated the shark was at least 17 meters (56 ft) long, and weighed around 37 testosterone levels. These measurements have been overstated to 43 t (95, 000 lb) and a more precise 17. 98 m (59. 0 ft) nowadays. A shark caught in 1994 off Tainan Nation, southern Taiwan, reportedly weighed 35. 8 t (79, 000 lb).[15] There have even been unverified claims of whale sharks of up to 23 metre distances (75 ft) and 75 tonnes (220, 000 lb). In 1934, a cruise ship named the Maurguani discovered a whale shark in the southern Pacific Ocean, rammed this, and the shark became jammed on the prow of the dispatch, supposedly with 4. 6th m (15 ft) on one side and 12. 2 m (40 ft) on the other.[16] No trustworthy documentation exists for these promises and they remain "fish stories".
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