whale shark drawing | whale shark attacks
The whale shark (Rhincodon typus) is a slow-moving, filter-feeding floor covering shark and the largest known extant fish species. The biggest confirmed individual had a period of 12. 65 m (41. 5 ft) and a weight of about 21. 5 t (47, 000 lb).[8] The whale shark holds many documents for size in the animal kingdom, most notably being certainly the largest living nonmammalian vertebrate. It is the sole member of the genus Rhincodon and the sole extant member of the family Rhincodontidae which in turn 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 it is rarely found in the water under 21 °C (70 °F).[2] Modeling advises a lifespan of about 75 years, but measurements own 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 plus the basking shark. They feed 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 4. 6 m (15 ft) specimen in Table Gulf, South Africa. Andrew Smith, a military doctor associated with British isles troops stationed in Plaid Town, described it the next year.[10] The name "whale shark" identifies the fish's size, getting as large as some species of whales,[11] as well as its being a filter feeder like baleen whales.
Whale sharks have a mouth that can be 1 . 5 meters (4. 9 ft) extensive, containing 300 to 450 rows of tiny teeth and 10 filter pads which usually it uses to filter foodstuff.[12] Unlike a number of other sharks, whale sharks' mouths are located at the front of the mind rather than on the underside with the head.[13] Whale sharks have five large pairs of gills. The head is wide and toned with two small sight at the front. Whale sharks are grey with a white abdominal. Their skin is designated with pale yellow spots and stripes which are exclusive to each individual. The whale shark has three dominant ridges along its sides. Its skin can be about 10 cm (3. 9 in) thick. The shark has a pair of dorsal bout and pectoral fins. Juveniles' tails have a larger superior 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 pet in the world. The average size of adult whale sharks is estimated at 9. 8 m (32 ft) and 9 t (20, 000 lb).[8] Several specimens over 18 m (59 ft) in length have been reported.[14] The largest verified specimen was caught about 11 November 1949, near Espumarajo Island, in Karachi, Pakistan. It was 12. 65 meters (41. 5 ft) very long, weighed about 21. your five t (47, 000 lb), and had a girth of seven 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 all their existence. In 1868, the Irish natural scientist Edward cullen Perceval Wright obtained several small whale shark specimens in the Seychelles, but believed to have observed specimens above 15 m (49 ft), and tells of shark specimens surpassing 21 m (69 ft).
Within a 1925 publication, Hugh Meters. Smith described a huge animal caught in a bamboo fish trap in Thailand in 1919. The shark was too heavy to pull ashore, but Smith estimated the shark was at least 17 m (56 ft) long, and weighed around 37 to. These measurements have been exaggerated to 43 t (95, 000 lb) and a far more precise 17. 98 m (59. 0 ft) recently. A shark caught in 1994 off Tainan State, southern Taiwan, reportedly considered 35. 8 t (79, 000 lb).[15] There have even been unverified claims of whale sharks of up to 23 metres (75 ft) and 85 tonnes (220, 000 lb). In 1934, a dispatch named the Maurguani found a whale shark in the southern Pacific Ocean, rammed this, and the shark became caught on the prow of the mail, supposedly with 4. 6th m (15 ft) on one side and 12. a couple of m (40 ft) one the other side of the coin.[16] No reputable documentation exists for these promises and they remain "fish stories".
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