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A small number of freshwater fish cyprinids and catfish (which are bony fish and thus quite unrelated to sharks) are also commonly called "freshwater sharks", "sharkminnows" or simply "sharks", particularly in the aquarium fish trade: Balantiocheilos melanopterus – Bala shark, tricolor shark, silver shark; Epalzeorhynchos – typical ...
The great white shark is arguably the world's largest-known extant macropredatory fish, and is one of the primary predators of marine mammals, such as pinnipeds and dolphins. The great white shark is also known to prey upon a variety of other animals, including fish, other sharks, and seabirds. It has only one recorded natural predator, the orca.
In general, sharks show little pattern of attacking humans specifically, part of the reason could be that sharks prefer the blood of fish and other common preys. [107] Research indicates that when humans do become the object of a shark attack, it is possible that the shark has mistaken the human for species that are its normal prey, such as seals.
Bullhead sharks ingest prey via suction feeding. [5] They feed on invertebrate prey, including both hard prey such as crustaceans and sea urchins, and soft bodied prey such as octopuses, as well as predating on fish. [6] They use their flattened teeth at the back of the mouth to crush hard-shelled prey and fish. [1]
Last year there were 57 unprovoked shark bites on humans and experts say these incidents may be increasing due to the impacts of global warming and habitat damage, writes Faiza Saqib
Innocuous to humans and hardy in captivity, zebra sharks are popular subjects of ecotourism dives and public aquaria. The World Conservation Union has assessed this species as Endangered worldwide, as it is taken by commercial fisheries across most of its range (except off Australia ) for meat, fins, and liver oil .
Get excited for the 35th official Shark Week, from July 23 to July 29, with these shark facts.
Under normal circumstances, horn sharks are harmless to humans and can readily be approached underwater. [3] However, they can be provoked into biting, and some pugnacious individuals have been known to chase and bite divers after being harassed. [6] These sharks should be handled with care as their fin spines can inflict a painful wound. [3]