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A hammerhead shark in shallow water. According to the International Shark Attack File, humans have been subjects of 17 documented, unprovoked attacks by hammerhead sharks within the genus Sphyrna since AD 1580. No human fatalities have been recorded. [34] Most hammerhead shark species are too small to inflict serious damage to humans. [8]
The great hammerhead shark is an active predator with a varied diet, known prey of the great hammerhead include invertebrates such as crabs, lobsters, squid, and octopus; bony fishes such as tarpon, sardines, sea catfishes, toadfish, porgies, grunts, jacks, croakers, groupers, flatfishes, boxfishes, and porcupine fishes; and smaller sharks such ...
The river sharks (of the genus Glyphis) can live in both saltwater and freshwater as well, while one of their members, the Ganges shark (Glyphis gangeticus), lives exclusively in freshwater. Some prehistoric sharks (in a broad sense), including hybodonts and xenacanths , are also thought to have inhabited freshwater environments.
The great hammerhead shark is found in a variety of water depths such as shallow lagoons and coral reefs, and in deeper waters up to 984 feet. These sharks frequent coastal and tropical waters, as ...
11-foot hammerhead shark with fish hooks in mouth caught by Texas angler, video shows. Huge hammerhead shark tagged by researchers was almost too much for boat, photos show. Show comments.
Sharks are found in all seas. They generally do not live in fresh water, with a few exceptions such as the bull shark and the river shark which can swim both in seawater and freshwater. [99] Sharks are common down to depths of 2,000 metres (7,000 ft), and some live even deeper, but they are almost entirely absent below 3,000 metres (10,000 ft).
The smooth hammerhead is one of nine known species of hammerhead shark. It is considered "vulnerable" on the International Union for Conservation of Nature's list of threatened species.
The bonnethead (Sphyrna tiburo), also called a bonnet shark or shovelhead, [3] is a small member of the hammerhead shark genus Sphyrna, and part of the family Sphyrnidae.It is an abundant species in the littoral zone of the North Atlantic and the Gulf of Mexico, is the only shark species known to display sexual dimorphism in the morphology of the head, and is the only shark species known to be ...