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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]
Great hammerhead embryos are connected to their mother by a placenta during gestation. As with other hammerhead sharks, great hammerheads are viviparous; once the developing young use up their supply of yolk, the yolk sac is transformed into a structure analogous to a mammalian placenta. Unlike most other sharks, which mate on or near the sea ...
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. [80] SMART drumlines can also be used to move sharks, which greatly reduces mortality of sharks and bycatch to less than 2%. [81]
Ten people died in shark attacks in 2023, with six killed in unprovoked attacks, researchers said at the time. The number of attacks last year was "well below" the 10-year average, of about 70 ...
Why do sharks attack humans? According to the Shark Research Institute, there are over 400 plus species of shark around the world, which include great white sharks, tiger sharks and bull sharks.
2024 was an "exceptionally quiet year" for shark attacks. But the U.S. still led the globe - again. See where the fatal attacks happened.
The smooth hammerhead (Sphyrna zygaena) is a species of hammerhead shark, and part of the family Sphyrnidae.This species is named "smooth hammerhead" because of the distinctive shape of the head, which is flattened and laterally extended into a hammer shape (called the "cephalofoil"), without an indentation in the middle of the front margin (hence "smooth").
A massive hammerhead shark was spotted near a popular Florida beach one Tuesday, sparking fear and awe among visitors. ... However, while sharks on average kill fewer than 15 people annually, ...