What sharks are dangerous to humans

what sharks are dangerous to humans

This Is The Most Dangerous Shark To Humans

Oct 24, †∑ Five Most Dangerous Sharks to Humans Tiger Shark. According to the International Shark Attack File, the Tiger shark ranks No. 2 behind the white shark in the Shortfin Mako. Powerful, fast and aggressive, the Shortfin Mako has been blamed for . Apr 22, †∑ The tiger shark has quite a notorious history, as it is responsible for unprovoked attacks on humans, almost 25% of which were fatal. Next to Great Whites, the tiger shark is the next most dangerous to humans. Tiger sharks are known to look for prey close to the shore at nighttime.

Many people believe that all sharks species are a huge threat to whatt. Though there are sharks like Tiger SharksBull Sharksand Great White Sharks that tend to be more aggressive toward humans, even these sharks do not really present much of a threat. In fact there are several species of shark that present no risk at all to humans.

So to help dispel the myth that all sharks are bloodthirsty, human hunting predators, we have compiled a list of the 10 least dangerous what sharks are dangerous to humans. Though Whale Sharks are the largest shark in the ocean, Whale Sharks present no threat to humans.

Whale Sharks are filter feeders, so like Whales they just eat zooplankton. So they do not hunt and kill prey the way some other species of sharks do. In fact, Whale Sharks have been known to not only be tolerant of divers, but some will even interact and play with humans. These beautiful, docile creatures are not dangerous at all. Nurse Sharks are the couch potatoes of the ocean. Though they are ferocious predators, they mainly just hang out along the bottom of the ocean in shallow waters and wait for prey.

The only times they have ever attacked dwngerous is when they have been directly antagonized and are protecting themselves. Nurse Sharks are a great shark for new divers and snorkelers to swim with because they present dangdrous threat to humans.

Basking Sharkslike Whale Sharks are another incredibly large filter feeder. Even though they are a lamniformes shark, so they whzt related to and often are mistaken for Great White Sharks, their temperament could not be any different from their predatory cousins. There has never been an account of a Basking Shark attacking a human, and because of their passive attitude, they also make a great swimming partner for divers. Though Leopard Sharks are found in the same shallow waters humans often swim in, there has never been a case of a Leopard Shark dangerouw a person.

These bottom dwellers many swim along the ocean floor hunting crabs danverous small fish. Usually when they encounter a human they will swim away, rather aree investigate. So considering how many opportunities they have to sre humans, Leopard Sharks present zero threat to people.

Angel Sharks are another coastal bottom dweller. Angel Sharks are found along the coast of every continent in the world, hunting just underneath the sandy surface. Otherwise, even though they are incredibly prolific, they sarks not aggressive. Bamboo Sharks are found in the coastal waters along Southeast Asia and the Australian continent. These small sharks measure around 48 in cm in length.

Though how to make the purest hash oil hunters, Bamboo Sharks have never attacked humans. Bamboo Sharks are so docile, they have been noted to let divers stroke and pet them. Between their smaller size and non-aggressive temperaments, these sharks pose no sharkz to humans. Goblin Sharks are one of the scariest looking sharks in the ocean. They have powerful retractable jaws, lined with sharp teeth, that jut out and quickly snag their prey.

However, not only are they not a particularly aggressive shark, they hunt in very deep ocean waters at a minimum of ft dahgerous so very few humans ever encounter them in the wild. To date, there are no documented cases of a Goblin Shark ever attacking a dangerouz. Though they are one of the whatever happened to mac davis the singer predatory sharks in the ocean, measuring up to a whopping 24 ft 7.

Greenland Sharks are a variety of Sleeper Shark, so they also swim at a very slow pace of 0. Also they prefer extremely cold and deep waters, so humans very rarely encounter them in the wild. There have been reports of Greenland Sharks attacking kayaks, but there are no known attacks on humans.

Sand Tiger Sharks are another non-threatening shark species. There are three species of Sand Tiger Sharks and even within this diversity, they have never been known wjat attack a human. They have been observed be protective and show displays waht dominance around humsns who are spearfishing underwater, but these have never lead to an attack. So these three species present no dngerous to humans. Thresher Sharks are impressive hunters. They use both their long tails to beat and whip their prey and their shark teeth and powerful jaws to take them down.

However, even though these are an aggressive what a day for a daydream guitar chords of shark, there have only been 5 total Thresher Shark attacks on humans, all have been provoked, and four happened when a Thresher Shark was brought aboard a boat. In the wild, Thresher Sharks are extremely shy around humans, preferring to steer clear of them. These ten species of shark are just some of the different species that roam our oceans.

Like these ten sharks, ard vast majority of shark species are not a direct threat to humans. In fact, even in cases with aggressive sharks like Bull Sharks, Tiger Sharks, and Great White Sharks, who have the how to resize windows 2003 server partition documented attacks on humans, most sharks only attack humans out of either curiosity or because they feel directly threatened.

Though there are many myths about sharks being violent predators hunting and eating humans, the reality is most sharks do not ever attack humans.

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Oct 05, †∑ Sharks arenít harmless creatures, and are opportunistic hunters who have been known to attack humans from time to time. This is a list of the 8 most dangerous sharks, in terms of fighting prowess, taking into account unique skills, abilities, and tactics. Out of species of sharks, only about 12 species are considered dangerous to humans, and only five species are known to attack humans the most. They are the [great white shark Carcharodon carcharias, bull shark (Carcharhinus leucas), tiger shark (Galeocerdo cuvier), Shortfin mako, and oceanic whitetip shark. Aug 28, †∑ The results show that while there have been 33 different species identified in unprovoked attacks on humans, most come from just three dastardly, ornery species, which they call the "Big Three." Those species are great white, tiger, and bull sharks, in descending order of ctcwd.com: Jim Dykstra.

Kiger Updated: Apr 9, Are sharks really dangerous? After all, you're more likely to be killed by lightning or faulty wiring on your Christmas tree than by a shark [source: McCarthy ]. Death by bee sting occurs far more often than death by shark [source: Burgess ]. In the water , you're more apt to drown or be injured by your own surfboard than be hurt by a shark [source: Martin ]. Researchers love to throw around statistics like these to redeem sharks.

Here's another juicy one: In , more than 8, dogs bit humans in New York City , while there were 1, reported instances of a human biting a human in the Big Apple. Statistically, it would seem that a person was more likely to be bit while riding the New York City subway than swimming in the ocean. Still, sharks and the possibility of attack continue to terrify us, thanks to movies like "Jaws" and sensational news reports.

For many, sharks represent the unknown and the unknowable. While we can forgive some of those 8, dogs for biting us, sharks don't show the same types of emotion, which makes it easy to paint them as mindless man-eaters.

Sometimes the statistics support our fears. In the past few years, the number of shark attacks has risen slightly, although that's likely due to more people engaging in recreational water activities, as opposed to hungrier sharks. Any shark that measures more than 6 feet 1. These sharks may not be specifically trolling for human flesh, but if they were to take a sample bite, they could do some serious damage.

While the most dangerous shark may always be the one that's swimming right towards you, it's worth remembering that of the almost identified shark species, less than 10 percent have been implicated in an attack on a human [source: Martin ]. Of the approximately 30 species that have attacked, which are the most dangerous? Let's sift through the attack statistics, the stereotypes and the sharp teeth to find out. This list won't include the biggest shark , the whale shark, which eats by filtering little pieces of plankton out of the water and is thus uninterested in humans.

But this list does include the fastest shark, the shortfin mako, which has been clocked at 20 miles 32 kilometers per hour [source: Allen ]. Although the shortfin mako has only been blamed for eight unprovoked attacks and two human fatalities, it ranks second only to the great white shark for attacks on boats, notching up 20 in comparison to the great white's 95 [source: ISAF ]. In one report, the mako's bite was enough to sink the boat in three minutes [source: Allen ]. For this reason, the shortfin mako may be the most dangerous shark for fishermen.

Conversely, fishermen are dangerous to the mako, which is a prize catch in the game-fishing world because of its speed, aggression and long jumps out of the water.

When hooked, the mako becomes extremely violent, sometimes harming the fishermen or the boat in the process. It's used to putting up a fight; its main prey, the swordfish, often attacks it in the course of the hunt. Novelist Zane Gray once wrote that a look into the mako's eyes revealed "a creature that would kill as he was being killed" [source: Lineaweaver ]. Some of these incidents with fishermen are considered "provoked," so the mako ranks slightly higher in provoked attacks than unprovoked.

Because the mako lives in deeper waters, fishermen and divers might be the only two groups that need to worry about this vigorously strong fish. Divers report that the mako swims in a figure-eight pattern with its mouth open as it tries to determine whether to attack [source: Compagno ]. The oceanic whitetip may only have seven unprovoked attacks and two fatalities on the books, but that's because it might be getting away with many of its crimes by not leaving any evidence.

Marine explorer Jacques Cousteau ranked this shark as one of the most dangerous for its brazenness in evaluating prey [source: Bright ]. Found in deep waters, this shark became a primary enemy during times of war, when soldiers ended up in the water after their transport was attacked. Known for being the first on the scene of a shipwreck, this shark likely gobbled up many servicemen not reflected in the statistics.

Most notably, the whitetip is thought to be responsible for eating many of the men aboard the Nova Scotia, which sunk in World War II and suffered more than casualties [source: Bester ]. The whitetip is probably one of the most abundant large fish in the ocean. Divers who encounter the fish report that this is a shark with attitude and boldness, unperturbed by the divers' defense mechanisms. It persistently and aggressively investigates divers. The whitetip isn't the only deep-water shark known to take an interest in whoever's bobbing in its feeding area, though.

On the next page, meet the blue shark. Have you ever used "he hit me first! While your mother may be unsympathetic to that line, statisticians evaluating shark attacks want to know who struck first. Provoked attacks result from some human action, including pulling the shark's tail, stepping on the shark, jabbing the shark with a spear gun or feeding the shark by hand.

Provocation explains why normally docile sharks, such as the nurse shark , attack. Unprovoked attacks occur when the human is bitten and pursued without knowingly irritating the shark.

However, the shark might classify things differently. Here's the good news: You don't have to worry about a blue shark stalking you while you frolic in the waves a few yards from your beach blanket. This aquatic predator, who can grow in excess of 12 feet 3. That's where it finds its dinner: small bony fishes, like herring and sardines, and invertebrates, like squid, cuttlefish and octopi.

It's also been known to scavenge on dead marine animals and steal from fishermen's nets. And that brings us to the bad news: Although blue sharks aren't known to be particularly aggressive -- especially compared to their nastier cousins the bull sharks -- they won't always turn their noses up at a potential meal of human flesh, either, if you happen to be shipwrecked or floating on your seat cushion after surviving a plane crash.

Reportedly, blue sharks have circled unfortunates bobbing around in their feeding grounds, and have been known to take exploratory bites [source: Florida Museum of Natural History ]. That said, between and , there've only been 32 just 32! In reality, blue sharks Prionace glauca have far more to fear from people.

An estimated 10 to 20 million of them are killed by humans each year. Many blue sharks are killed when they become entangled in fishermen's nets and others are slaughtered for their fins, which are sold on Asian markets for making shark fin soup, a delicacy [source: Florida Museum of Natural History ].

If you're a Florida surfer, you may already be familiar with the blacktip shark Carcharhinus limbatus , since the species reportedly inflicts 16 percent of the shark bites on surfing enthusiasts in your state. Blacktips also have chomped on humans along other parts of the Atlantic and Gulf coasts of the United States, and off the waters of South Africa and the Caribbean. If there's an upside to this, it's that the species, which prefers depths of around 10 feet, only averages about 5 feet 1.

There've been 42 documented attacks on humans by blacktip sharks, but just one resulted in an unprovoked fatality [source: International Shark Attack File ]. Though blacktips usually prefer saltwater, they also are often seen near shore around river mouths, bays, mangrove swamps and in other estuaries. They get their name from the distinctive black markings on the tips of their fins. They have stout bodies with a moderately long, pointed snouts and high, pointed first dorsal fins. They're dark gray-blue or brown on their upper bodies, with white underbellies and a distinctive white band across their flanks.

Blacktips feed primarily on small schooling fishes like herring and sardines, but they also eat bigger bony fish like catfish and grouper and have been known to make a meal out of some types of small sharks, stingrays, crustaceans and squids. We'd be remiss if we didn't add that like many other shark species, blacktips have more to fear from humans than the other way around. They're caught by fishermen, who sell their meat for human consumption or to be used as fish meal to feed animals.

Their fins are also sold in Asian markets for making soup. The director of the ISAF warns that these statistics aren't perfect. Shark attacks in the third world are rarely reported to the ISAF. Some sharks are simply more identifiable than others, so their statistics might be much higher than the "hit-and-run" sharks, sharks that take a quick bite and then disappear. Some of the more easily identified sharks are the great white, tiger, sand tiger, hammerhead and nurse sharks ; the most difficult sharks to identify are some members of the family Carcharhinidae, or the requiem sharks.

Requiem sharks as a grouping take fourth place in the ISAF's attack statistics. If the nurse shark were a person, it might have a chip on its shoulder about its name, which isn't nearly as ferocious-sounding as "bull" or "tiger. The species Ginglymostoma cirratum , which grows to between 8 and 9 feet 2. Fortunately, even in the rare instances when a nurse shark does attack a human -- so far, 52 times, with no recorded fatalities -- the bite isn't powerful enough to be lethal [source: International Shark Attack File ].

The downside is that the nurse shark's small mouth is attached to a large pharynx that enables it to suck up food and latch onto it. In fact, its grip is so vicelike that, in some cases, rescuers have had to use surgical instruments to free victims. Fortunately, humans aren't the nurse shark's preferred meal, of course; the species feeds mainly on stingrays, octopi, squids, clams and crustaceans. They're nocturnal animals that rest on sandy bottoms or in caves and crevices during the day, and they often gather in groups of as many as Nurse sharks have rounded, stubby heads with set-back eyes, and long caudal tail fins, which account for more than a quarter of their total length.

They range from light yellowish tan to dark brown in color, and young nurse sharks have small black spots on their bodies. While nurse sharks are not endangered, their population in Florida has decreased in recent decades. Requiem sharks actually are a family of 12 genera and approximately 50 species. They have a funereal-sounding name, and for spear fishermen, in particular, they can be a lethal menace.

That's because fish skewered and struggling on a spear emit low frequency vibrations, which requiems can detect with their highly sophisticated sensory organs.

Once they've arrived in the vicinity of the catch and can smell blood, their aggressive instincts can take over. That's not a good thing, if you happen to be in the water with them, because the strong-swimming, torpedo-shaped predators, who travel either solo or in groups, have big mouths filled with sharp, serrated teeth [source: Randall ].

Various types of requiem sharks have attacked humans 56 times, with seven unprovoked fatal attacks on record [source: International Shark Attack File ]. What makes the sharks even more frightening is that a few of requiem species, such as the grey reef shark, have a distinctive threat posturing. The sharks will swim laterally, toss their heads in an exaggerated fashion, arch their backs with their pectoral fins held downward, and snap their jaws menacingly.

If you see a shark doing that, it's best to move slowly away. Requiem species vary in size, but the biggest can exceed 24 feet in length, often making them the biggest bullies on the block [source: Beller ]. If there's a silver lining to all this, it's that requiems are voracious eaters who normally dine on a lot of other creatures besides humans, including sharks and rays, squid, octopuses, lobsters, turtles, marine mammals and sea birds [source: Randall ].

Large and fierce members of the Requiem family, like the bull shark and the tiger shark, are especially dangerous to humans. We'll get to them in a couple of pages. Researchers who've observed sand tiger sharks say they generally aren't aggressive toward humans unless provoked, but that's not much consolation if you're a fisherman and find yourself confronted with the predator's prominent, jagged-looking teeth [source: Florida Museum of Natural History ].

Sand tigers have attacked humans 77 times, though, miraculously, only one of the attacks proved fatal [source: International Shark Attack File ]. The species Carcharias Taurus is found in most warm seas throughout the world, except for the eastern Pacific.


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