Top 10 Dangerous Sharks
Lemon sharks may chase down other sharks as prey, along with large sea birds, squid, crustaceans, stingrays and eagle rays. This is not an aggressive shark species toward humans; however, when threatened, this big yellow fish will not hesitate to inflict a potentially serious, and even deadly, bite.
Blue sharks eat until they almost burst. Their drive to feast seems insatiable. In addition to anchovies, they also often consume mackerel, sardines, birds, seals, turtles and squid. They have also been known to attack small fishing boats and divers.
The great hammerhead can reach a length of up to 18 feet, with a weight of 1,500 pounds. The unusual location of the eyes may provide the hammerhead with a more precise and broad view of its environment. Active predators, hammerheads are quite common in warm ocean waters and feed primarily on fish and squid.
Shallow waters are the sand tiger shark’s preferred domains, but they will often dive to 656 feet in their range, which includes the Pacific Ocean, Indian Ocean, eastern and western Atlantic Ocean, and Mediterranean and Adriatic seas. This shark arguably is the fiercest-looking fish in the world with long teeth that seem to overtake its mouth! However, the sand tiger shark is usually not a danger to humans unless provoked.
Grey reef sharks are active during the day, but feed at night on reef fish, squids, octopus and various crustaceans. It is a social species and is often curious. Scuba divers can attest to the grey reef sharks curiosity and investigation skills. However, when it feels threatened it hunches its back and bends its body in to an “S” shape
These sharks have torpedo-like bodies and are the fastest of all sharks. Shortfin mako sharks are aggressive feeders and will not hesitate to attack when provoked. Some fishermen have reported that these sharks have freed themselves from fishing lines, and then proceeded to bite and batter those on board the ship.
The oceanic whitetip typically inhabits warm, deep water. This shark tends to swim near the surface of the water, constantly on the prowl for possible food sources. When feeding with other sharks, it has been known to become aggressive and this often results in a "feeding frenzy." Oceanic whitetips are not the fastest sharks but they are capable of bursts of speed.
What makes these sharks particularly threatening to swimmers and divers is a combination of their large size, hunting style (close to shore and the ocean's surface), natural curiosity and indiscriminate appetite; tiger sharks will eat just about anything that floats!
The largest predatory fish, the great white can weigh up to 2,450 pounds. Great whites are found in oceans worldwide, but especially in the temperate coastal waters of North America, southern Africa, and southern and western Australia. Their extremely sharp, flat teeth are shaped like arrowheads, designed to slice through (and remove) big chunks of flesh from their prey.
These aggressive predators like to hang out in warm, shallow waters close to the shore, right where humans like to swim. They are found all over the world and can even tolerate fresh water; bull sharks have even been found as far up as Illinois in the Mississippi River! When attacking prey, bull sharks use the "bump-and-bite" technique, allowing them to test their meal and then rip into it in an instant.