Named after the Maori word for ‘shark’ which Is the fastest swimmer among the sharks - it can reach speeds of over So mph?
"remaining in large schools. Sometimes more than 100 scalloped hammerheads congregate around seamounts and islands, e.g., in the Gulf of California. Cross-species social hierarchies exist. For example, oceanic whitetip sharks dominate silky sharks of comparable size during feeding. When approached too closely some sharks perform a threat display. This usually consists of exaggerated swimming movements, and can vary in intensity according to the threat level. In general, sharks swim (""cruise"") at an average speed of , but when feeding or attacking, the average shark can reach speeds upwards of . The shortfin mako shark, the fastest shark and one of"
"Shortfin mako shark The shortfin mako shark (""Isurus oxyrinchus""), also known as the blue pointer or bonito shark, is a large mackerel shark. It is commonly referred to as the mako shark, as is the longfin mako shark (""Isurus paucus""). The shortfin mako is on record as the fastest-swimming shark, capable of bursts of speed up to . ""Mako"" comes from the Māori language, meaning either the shark or a shark tooth. As in the Māori language (where there is no letter ""s""), ""mako"" is both singular and plural. The word may have originated in a dialectal variation as it"
"fastest species of shark. Its speed has been recorded at , with bursts of up to allowing it to jump to heights of approximately . These characteristics have made the shortfin mako a highly sought-after game fish worldwide. Some cases of shortfin mako jumping into a boat after having been hooked have been reported. The shortfin mako shark is a yolk-sac ovoviviparous shark, giving birth to live young. Developing embryos feed on unfertilized eggs (oophagy) within the uterus during the 15- to 18-month gestation period. They do not engage in sibling cannibalism unlike the sand tiger shark (""Carcharias taurus""). The"
"the fastest fish, can burst at speeds up to . The great white shark is also capable of speed bursts. These exceptions may be due to the warm-blooded, or homeothermic, nature of these sharks' physiology. Sharks can travel 70 to 80 km in a day. Sharks possess brain-to-body mass ratios that are similar to mammals and birds, and have exhibited apparent curiosity and behavior resembling play in the wild. There is evidence that juvenile lemon sharks can use observational learning in their investigation of novel objects in their environment. All sharks need to keep water flowing over their gills in"
"and include the butterfly mackerel, a species of primitive mackerel. Mackerel are strong swimmers. Atlantic mackerel can swim at a sustained speed of 0.98 metres/sec with a burst speed of 5.5 m/s, while chub mackerel can swim at a sustained speed of 0.92 m/s with a burst speed of 2.25 m/s. Most mackerel species have restricted distribution ranges. Three species of jack mackerels are found in coastal waters around New Zealand: the Australasian, Chilean and Pacific jack mackerels. They are mainly captured using purse seine nets, and are managed as a single stock that includes multiple species. Some mackerel species"
"most respected sharks of the ocean, an ""aumakua"". Many Hawaiian families believe that they have an ""aumakua"" watching over them and protecting them from the ""niuhi"". The hammerhead shark is thought to be the birth animal of some children. Hawaiian children who are born with the hammerhead shark as an animal sign are believed to be warriors and are meant to sail the oceans. Hammerhead sharks rarely pass through the waters of Maui, but many Maui natives believe that their swimming by is a sign that the gods are watching over the families, and the oceans are clean and balanced."
"is similar to the common words for shark in a number of Polynesian languages—""makō"" in the Kāi Tahu Māori dialect, ""mangō"" in other Māori dialects, ""mago"" in Samoan, ""ma'o"" in Tahitian, and ""mano"" in Hawaiian. The first written usage is in Lee and Kendall's ""Grammar and vocabulary of the language of New Zealand"" (1820), which simply states, ""Máko; A certain fish"". Richard Taylor's ""A leaf from the natural history of New Zealand"" (1848) is more elaborate: ""Mako, the shark which has the tooth so highly prized by the Maoris"". In 1809, Constantine Rafinesque gave the shortfin mako the scientific name"
"other zooplankton. It is among the fastest of all cetaceans, and can reach speeds of up to (27 knots) over short distances. The whale's name comes from the Norwegian word for pollock, a fish that appears off the coast of Norway at the same time of the year as the sei whale. Following large-scale commercial whaling during the late 19th and 20th centuries, when over 255,000 whales were killed, the sei whale is now internationally protected, although limited hunting occurs under a controversial research program conducted by Japan. , its worldwide population was about 80,000, less than a third of"
"to in length, and weighing up to . Growth can be rapid. Wahoo can swim up to 60 mph (96.5606 km/h). They are some of the fastest fish in the sea. The wahoo may be distinguished from the related Atlantic king mackerel and from the Indo-Pacific narrow-barred Spanish mackerel by a fold of skin which covers the mandible when its mouth is closed. In contrast, the mandible of the king mackerel is always visible as is also the case for the smaller Spanish mackerel and Cero mackerel. The teeth of the wahoo are similar to those of king mackerel, but"
"""The Emperor"", in the collection ""No Comebacks"", tells of a bank manager named Murgatroyd, who catches a marlin and is acknowledged by the islanders of Mauritius as a master fisherman. Marlin A marlin is a fish from the family Istiophoridae, which includes about 10 species. It has an elongated body, a spear-like snout or bill, and a long, rigid dorsal fin which extends forward to form a crest. Its common name is thought to derive from its resemblance to a sailor's marlinspike. Even more so than their close relatives, the scombrids, marlins are fast swimmers, reaching speeds of about ."
"speed and tail-beat frequency for its size across all fish species, which most likely correlates with its very slow metabolism and extreme longevity. It swims at a leisurely , with its fastest cruising speed only reaching . Because this top speed is only half that of a typical seal in their diet, biologists are uncertain how the sharks are able to prey on the faster seals. It is hypothesized that they may ambush them while they sleep. Greenland sharks migrate annually based on depth and temperature rather than distance, although some do travel. During the winter, the sharks congregate in"
"Isurus Isurus is a genus of mackerel sharks in the family Lamnidae, commonly known as the mako sharks. The two living species are the common shortfin mako shark (""I. oxyrinchus"") and the rare longfin mako shark (""I. paucus""). They range in length from , and have an approximate maximum weight of . Several extinct species are known from fossils found in sediments from Cretaceous to Quaternary (age range: 99.7 to 0.781 million years ago). The family Lamnidae also includes the great white shark and the porbeagle. Mako sharks are capable of swimming at speeds up to , and jumping up"
"Dwarf seahorse The dwarf seahorse (""Hippocampus zosterae"") is a species of seahorse found in the subtidal aquatic beds of the Bahamas and parts of the United States. It is threatened by habitat loss. According to ""Guinness World Records"", it is the slowest-moving fish, with a top speed of about per hour. It is most often white in color but can range from tan, brown, yellow and green. In the wild, it often has small skin growths called cirri that resemble algae. Like other seahorses, the dwarf seahorse has a head angled at right angles to its body and swims upright"
"did attain a size of over , it would have been the largest known fish that has ever lived, surpassing the Jurassic fish ""Leedsichthys"". Mature male megalodon may have had a body mass of , and mature females may have been , given that males could range in length from and females . A 2015 study linking shark size and typical swimming speed estimated that megalodon would have typically swum at –given that its body mass was typically –which is consistent with other aquatic creatures of its size, such as the fin whale (""Balaenoptera physalus"") which typically cruises at speeds"
"gray or blue, and the eyes are black with bluish streaks in the iris. After death, the coloration quickly fades to dull gray or brown. Adult sharks usually measure between long. However, the capture of an enormous female estimated at long in 2000 showed this species can grow far larger than previously suspected. The maximum weight on record is for a 3.8-m-long shark. The generic name honors Keigo Mitsukuri, a Japanese zoologist who studied at University College London during the 1860s. The specific name honors Alan Owston, an English collector of Asian wildlife. The goblin shark has been caught in"
"These include limiting the number of swimmers per boat, no scuba divers and staying further than three meters away from the sharks. In practise this rule is almost never applied. As many as 14 boats at a time may 'mob' a shark, with up to 30 or 40 swimmers following the shark on the surface. In recent years the number of male sharks have out-numbered female sharks by 20:1. The females that are seen are generally large mature adults in the 7m ~ 9m range. Increasing numbers of sharks show propellor marks on their backs. Anecdotal evidence from local fishermen"
"other sharks. An amateur videotape, taken in Pacific waters, shows a moribund pantropical spotted dolphin whose tail was almost completely severed being circled by a shortfin mako. Mako also tend to scavenge long-lined and netted fish. Its endothermic constitution partly accounts for its relatively great speed. Like other lamnid sharks, the shortfin mako shark has a heat-exchange circulatory system that allows the shark to be 7–10 °F (4–7 °C) warmer than the surrounding water. This system enables them to maintain a stable, very high level of activity, giving it an advantage over its cold-blooded prey. The shortfin mako is the"
"Great hammerhead The great hammerhead (""Sphyrna mokarran"") is the largest species of hammerhead shark, belonging to the family Sphyrnidae, attaining a maximum length of . It is found in tropical and warm temperate waters worldwide, inhabiting coastal areas and the continental shelf. The great hammerhead can be distinguished from other hammerheads by the shape of its ""hammer"" (called the ""cephalofoil""), which is wide with an almost straight front margin, and by its tall, sickle-shaped first dorsal fin. A solitary, strong-swimming apex predator, the great hammerhead feeds on a wide variety of prey ranging from crustaceans and cephalopods, to bony fish,"
"Greenland shark The Greenland shark (""Somniosus microcephalus""), also known as the gurry shark, grey shark, or by the Kalaallisut name eqalussuaq, is a large shark of the family Somniosidae (""sleeper sharks""), closely related to the Pacific and southern sleeper sharks. The distribution of this species is mostly restricted to the waters of the North Atlantic Ocean and Arctic Ocean. It has the longest known lifespan of all vertebrate species (estimated to be between 300–500 years), and is among the largest extant species of shark. As an adaptation to living at depth, it has a high concentration of trimethylamine N-oxide in"
"and weighting up to , ""Cretoxyrhina"" was one of the largest sharks of its time. Thanks to the discoveries of many exceptionally well-preserved skeletons of ""Cretoxyrhina"", it is the most anatomically well-understood extinct shark to date. These fossils suggest that it may have had a similar appearance and build to the modern great white shark. The possession of the most extreme hydrodynamic features suggests that ""Cretoxyrhina"" may have been capable of burst speeds up to , making it one the fastest swimming sharks. Their teeth are razor-like and have thick enamel, built for stabbing and slicing prey with powerfully kinetic"
"However, substantial numbers are caught as bycatch, leading it to be assessed as Near Threatened by the International Union for Conservation of Nature (IUCN). This species was responsible for damaging deep sea fiberoptic cables when the technology was first deployed in 1985. The English common name ""crocodile shark"" is derived from its Japanese name ""mizuwani"" (水鰐, literally ""water crocodile""), which refers to its sharp teeth and habit of snapping vigorously when taken out of the water. Other common names for this species include Japanese ragged-tooth shark, Kamohara's sand-shark, and water crocodile. The crocodile shark was first described as ""Carcharias kamoharai"""
"(26 miles), 15:15 - Kaieiewaho Channel, November 20, 2010, Oahu to Kauai (72-mile relay), 47:55 - Alenuihaha Channel, February 27, 2011, Hawaii to Maui (30 miles), 19:46 Mike Spalding Mike Spalding (born 1947) is a marathon swimmer, and one of only two people to have swum all nine channels of the main Hawaiian Islands. He lives on Maui. In 2009 Spalding became one of the few humans to be attacked by the deep water Cookiecutter shark. He was bitten by one of the sharks while swimming between the islands of Hawai'i and Maui in what is referred to as the"
"the same aquarium as the adults in a dwarf seahorse dedicated tank. The dwarf seahorse has a gestation period of 10–14 days and can live up to over 2 years in captivity. Dwarf seahorse The dwarf seahorse (""Hippocampus zosterae"") is a species of seahorse found in the subtidal aquatic beds of the Bahamas and parts of the United States. It is threatened by habitat loss. According to ""Guinness World Records"", it is the slowest-moving fish, with a top speed of about per hour. It is most often white in color but can range from tan, brown, yellow and green. In"
"of Tubigon. Macarine was the first man to swim across the Surigao Strait which is known for its turbulent water currents and at the time of his crossing there were recent sightings of Hammerhead sharks. The feat done in Surigao City on December 30, 2013 was done by Macarine by swimming from Basul Island to Barangay Lipata. In May 2015, Macarine mentioned that he has never encountered a shark in his open water swimming stints. After the first successful open water swim, Macarine made several crossings in and out of the country to promote his lifetime advocacy on clean seas,"
"""lakana"". The outrigger float is called the ""ama"" in many Polynesian languages (compare Hawaiian ""ama"", Maori ""ama"", and Samoan ""ama"", all meaning 'outrigger float'), realisations of Proto-Malayo-Polynesian *saRman 'outrigger float'. Similar terms also exist in other Malayo-Polynesian languages, such as Pohnpeian ""dahm"", Yapese ""thaam"", Ambonese Malay ""semang"", all meaning 'outrigger float', as well as Chamorro ""sakman"" meaning '[a] large canoe - from Polynesia or Papua, [with] no outrigger, capable of carrying over 100 people'. The outrigger boom—spars connecting the ""ama"" to the main hull (or the two hulls in a double-hull canoe)—are called ""iako"" in Hawaiian and ""kiato"" in Māori"
"are ""S. brevirostris"", ""S. japonicus"" and ""S. mitsukurii""); it is morphologically more similar to ""Squalus albifrons"" from eastern Australia than the other Taiwanese species. Similarly, genetic methods identify ""S. albifrons"" as the closest relative of ""S. formosus"". It is a medium-sized species of ""Squalus"" that can reach at least TL. Taiwan spurdog The Taiwan spurdog (""Squalus formosus"") is a species of shark in the genus ""Squalus"". It was accidentally found in Taiwan's Tashi fish market by William Toby White and a colleague of the CSIRO in Hobart, Australia. They named it ""S. formosus"" (""Formosa"" being a former name for Taiwan)."
"and using pectoral fins (located behind their eyes) to steer. The slowest-moving fish in the world is ""H. zosterae"" (the dwarf seahorse), with a top speed of about per hour. Since they are poor swimmers, they are most likely to be found resting with their prehensile tails wound around a stationary object. They have long snouts, which they use to suck up food, and their eyes can move independently of each other like those of a chameleon. Anatomical evidence, supported by molecular, physical, and genetic evidence, demonstrates seahorses are highly modified pipefish. The fossil record of seahorses, however, is very"
"Marlin A marlin is a fish from the family Istiophoridae, which includes about 10 species. It has an elongated body, a spear-like snout or bill, and a long, rigid dorsal fin which extends forward to form a crest. Its common name is thought to derive from its resemblance to a sailor's marlinspike. Even more so than their close relatives, the scombrids, marlins are fast swimmers, reaching speeds of about . The larger species include the Atlantic blue marlin, ""Makaira nigricans"", which can reach in length and in weight and the black marlin, ""Istiompax indica"", which can reach in excess of"
"Whale shark The whale shark (""Rhincodon typus"") is a slow-moving, filter-feeding carpet shark and the largest known extant fish species. The largest confirmed individual had a length of and a weight of about . The whale shark holds many records 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 only extant member of the family Rhincodontidae which belongs to the subclass Elasmobranchii in the class Chondrichthyes. Before 1984 it was classified as ""Rhiniodon"" into Rhinodontidae. The whale shark is found in open"
"corkscrews vertically through schools of small fish and its momentum launches it into the air. Observations in the Bahamas suggest that blacktip sharks may also jump out of the water to dislodge attached sharksuckers (""Echeneis naucrates""), which irritate the shark's skin and compromise its hydrodynamic shape. The speed attained by the shark during these jumps has been estimated to average 6.3 m/s (21 ft/s). Blacktip sharks have a timid disposition and consistently lose out to Galapagos sharks (""C. galapagensis"") and silvertip sharks (""C. albimarginatus"") of equal size when competing for food. If threatened or challenged, they may perform an agonistic"
"has been known to defend itself quickly and vigorously if touched, speared, or otherwise provoked or alarmed. Once agitated, this shark can be a persistent adversary; in one case, a shark forced a swimmer to seek refuge atop a coral head, and circled for hours before giving up. However, observations by divers show that normally this shark is shy and hesitant to approach, even when presented with bait. Often, the shark will move away when a diver enters visual range. Young sharks are reportedly more aggressive and inquisitive than the adults. At Moorea, sicklefin lemon sharks are the main attraction"
"sometimes allow swimmers to catch a ride, although this practice is discouraged by shark scientists and conservationists because of the disturbance to the sharks. Younger whale sharks are gentle and can play with divers. Underwater photographers such as Fiona Ayerst have photographed them swimming close to humans without any danger. The shark is seen by divers in many places, including the Bay Islands in Honduras, Thailand, Indonesia, the Philippines, the Maldives close to Maamigili (South Ari Atoll), the Red Sea, Western Australia (Ningaloo Reef, Christmas Island), Taiwan, Panama (Coiba Island), Belize, Tofo Beach in Mozambique, Sodwana Bay (Greater St. Lucia"
"surpassing . In a 1925 publication, Hugh M. 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 long, and weighed around 37 t. These measurements have been exaggerated to and a more precise in recent years. A shark caught in 1994 off Tainan County, southern Taiwan, reportedly weighed . There have even been unverified claims of whale sharks of up to and . In 1934, a ship named the ""Maurguani"" came across a whale shark in the southern"