whale shark vs | whale shark galapagos
The whale shark (Rhincodon typus) is a slow-moving, filter-feeding floor covering shark and the largest known extant fish species. The largest confirmed individual had a period 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 data for size in the dog kingdom, most notably being by far the largest living nonmammalian vertebrate. It is the sole member of the genus Rhincodon and the only 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 waters of the tropical oceans which is rarely found in the water beneath 21 °C (70 °F).[2] Modeling advises a lifespan of about seventy years, but measurements include proven difficult.[9] Whale sharks have very large mouths and are filter feeders, which is a feeding mode that develops in only two other fishes, the megamouth shark and 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 5. 6 m (15 ft) specimen in Table Bay, South Africa. Andrew Smith, a military doctor associated with Indian troops stationed in Gabardine Town, described it the subsequent year.[10] The name "whale shark" refers to the fish's size, staying as large as some species of whales,[11] as well as 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 various other sharks, whale sharks' teeth are located at the front of the head rather than on the underside from the head.[13] Whale sharks have five huge pairs of gills. The top is wide and level with two small eye at the front. Whale sharks will be grey with a white abdominal. Their skin is marked with pale yellow spots and stripes which are different to each individual. The whale shark has three visible ridges along its facets. Its skin can be approximately 10 cm (3. hunting for 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 turns into semilunate. The whale shark's spiracles are just behind it is eyes.
The whale shark is the largest non-cetacean canine in the world. The average size of adult whale sharks is predicted at 9. 8 meters (32 ft) and being unfaithful t (20, 000 lb).[8] Several specimens over 18 m (59 ft) in length have been reported.[14] The largest confirmed specimen was caught on 11 November 1949, near Baba Island, in Karachi, Pakistan. It was 12. 65 m (41. 5 ft) longer, weighed about 21. a few 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 in the popular literature, but zero scientific records support their very own 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 around 15 m (49 ft), and tells of shark specimens surpassing 21 m (69 ft).
Within a 1925 publication, Hugh Meters. Smith described a huge dog caught in a bamboo seafood trap in Thailand in 1919. The shark was too heavy to pull ashore, although Smith estimated the shark was at least 17 m (56 ft) long, and weighed around 37 capital t. These measurements have been overstated to 43 t (95, 000 lb) and a far more precise 17. 98 m (59. 0 ft) nowadays. A shark caught in 1994 off Tainan County, southern Taiwan, reportedly considered 35. 8 t (79, 000 lb).[15] There have even recently been unverified claims of whale sharks of up to 23 metres (75 ft) and 75 tonnes (220, 000 lb). In 1934, a vessel named the Maurguani discovered a whale shark inside the southern Pacific Ocean, rammed this, and the shark became caught on the prow of the vessel, supposedly with 4. 6th m (15 ft) on a single side and 12. a couple of m (40 ft) on the other.[16] No reliable documentation exists for these says and they remain "fish stories".
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