Behind the sharks, the reputation of dangerous and ruthless sea predators is fixed, and in many respects it's true.
But of the more than 360 species of these fish, only four were known as "cannibals".
The championship for unprovoked attacks is held by four species - a white shark, a bull-shark, a tiger shark and a long-winged shark.
The probability of a fatal encounter with a shark is extremely low - 1 to 3.7 million. For comparison, the deaths due to inaccurate handling of pyrotechnics are ten times more likely.
White shark, or carharodone - the leader in numberRegistered attacks. According to the Florida Museum of Natural History (FLMNH) since 1580, carcarodon has committed 272 attacks on humans, 74 of them have ended in death. The white shark is one of the largest predatory fish - its average length is 4.5 meters. Survived shots of the head of a shark, caught in 1987, whose body length is 6.45 meters.
A shark-bull, or a tusked shark, divides the championship withCarcharidone. The official cases are only 92, deadly - 26. But experts believe that they are much more, as the shark-bull lives near the coasts of Africa and India, where attacks on people are not recorded. The shark bull, despite its relatively small size - 3.5 meters, is dangerous because it often rises upstream of the rivers. The shark was found in the Zambezi, Ganges and many other African and Indian rivers. Do not confuse the bull-shark and completely harmless Australian bullish shark.
Tiger shark, or leopard shark, takesthird place. FLMNH reports about a hundred attacks from the 16th century, 29 of them - lethal. The average length of the body is 5 m with a weight of 400 to 650 kg. The shark is common in almost all tropical and subtropical waters.
A person is not the desired food for a shark. These predators prefer more fatty meat. All unprovoked attacks are a consequence of a mistake in determining the prey.
Closes four of the most dangerous fishLong-winged gray shark - small predator, length from 1.5 to 3 meters, most of which attacks did not remain documentary evidence. In the statistics of FLMNH they are only 10. Long-winged sharks are not dangerous near the shore, but it is believed that they can attack scientists and shipwreck victims on the high seas.
In addition to the above, there are several more typesSharks, which are dangerous for humans, although much less. These include hammerhead, shark-mako, dark-headed, Galapagos, silk, blue and lemon shark.
All these species are large predators, and meeting with themIn their hunting grounds may end tragically, but this happens very rarely. For example, of the 17 reported cases of hammerhead attack, according to the Philadelphia Museum of Natural History, none resulted in death.