25 Sharks Responsible For The Most Human Attacks

Sharks are not man eating machines. Please keep this in mind when reading this post. However, some sharks (whether because they confused a human with a seal, or because the human provoked the shark, etc) have attacked and even killed some humans. Here are the top 25 sharks responsible for the most human incidents based of the ISFA (International Shark Attack File).

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Leopard shark


The leopard shark (Triakis semifasciata) is a species of houndshark, in the family Triakidae. It measures about 1.2–1.5 m (3.9–4.9 ft) long and is immediately identifiable by the striking pattern of black saddle-like markings and large spots over its back. Though not harmful to humans, the leopard shark is responsible for two incidents (none of which were fatal).


Silver tip shark


An aggressive, powerful apex predator, the silvertip shark has a broad diet that includes bony fishes, as well as eagle rays, smaller sharks, and cephalopods. Though considered dangerous to humans, the silvertip shark only has four incidents to its name.


Porbeagle shark


The porbeagle (Lamna nasus) is a species of mackerel shark in the family Lamnidae, distributed widely in the cold and temperate marine waters of the North Atlantic and Southern Hemisphere. An opportunistic feeder, the porbeagle shark preys mainly on bony fishes and cephalopods. Only five incidents have been attributed to the porbeagle with none being fatal.


Silky Shark


The silky shark is a large yet slim oceanic shark that features dusky fin tips and a white band on its flank. When this shark reaches its 7th year, its length is already about 10 feet. It is found near continental and insular shelves at a depth of 1,640 feet and preys on pelagic and inshore fishes. According to ISFA, the Silky Shark has had 6 human incidents. However, none of them were fatal.


Dusky Shark


This shark is a large gray shark that has a rounded and short snout. Like the Caribbean reef shark it also has no markings on its fins. Its color ranges from gray to bluish gray and can reach lengths of up to 11.9 feet (3.62712m). Found on continental and insular shelves, this shark is migratory and according to ISFA, has had 6 total incidents with humans from 1581 – 2011. One of these being fatal and unprovoked.

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