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While shark nets and drum lines share the same purpose, drum lines are more effective at targeting the three sharks that are considered most dangerous to swimmers: the bull shark, tiger shark and great white shark. [79] SMART drumlines can also be used to move sharks, which greatly reduces mortality of sharks and bycatch to less than 2%. [80]
Oceanic whitetip shark swimming near a diver in the Red Sea. Oceanographic researcher Jacques Cousteau described the oceanic whitetip as "the most dangerous of all sharks". [21] Author and big-game fisherman Ernest Hemingway depicted them as aggressive opportunists that attacked the catch of fishermen in The Old Man and the Sea. [22]
Although sharks rarely bite humans, the tiger shark is reported to be responsible for a large share of fatal shark-bite incidents, and is regarded as one of the most dangerous shark species. [62] [63] They often visit shallow reefs, harbors, and canals, creating the potential for encounter with humans. [5]
The tiger shark is considered to be one of the most dangerous sharks to humans. [1] Although it is found in the Red Sea it is not usually seen near reefs during the daytime. The Grey reef shark is territorial and may be aggressive, and has been involved in non-fatal attacks on divers.
Contrary to popular belief, only a few sharks are dangerous to humans. Out of more than 470 species, only four have been involved in a significant number of fatal, unprovoked attacks on humans: the great white, oceanic whitetip, tiger, and bull sharks. [102] [103] These sharks are large, powerful predators, and may sometimes attack and kill ...
The bull shark (Carcharhinus leucas), also known as the Zambezi shark ... they may be more dangerous to humans than any other species of shark. [23] ...
But shark attacks are generally rare overall, with confirmed unprovoked cases totalling 57 worldwide in 2022, according to the ISAF, which is lower than the most recent five-year (2017-21) average ...
This technique is especially used on adult male elephant seals, which are typically larger than the shark, ranging between 1,500 and 2,000 kg (3,300 and 4,400 lb), and are potentially dangerous adversaries. [125] [126] However, juvenile elephant seals are the most frequently eaten at elephant seal colonies. [127] Prey is normally attacked sub ...