HammerHead Shark By: Drake Sorrell

Scientific Name: Sphynidae
Range:The great hammerhead is the largest of the nine identified species of this shark. It can grow up to 20 feet (6 meters) in length and weigh up to 1,000 pounds (450 kg), although smaller sizes are more common.
Diet:Hammerhead sharks are known to eat a large range of prey including fish, squid, octopus, crustaceans, and other sharks. Stingrays are a particular favorite. These sharks are often found swimming along the bottom of the ocean, stalking their prey.
Physical Description:Hammerheads have disproportionately small mouths and seem to do a lot of bottom-hunting. They are also known to form schools during the day, sometimes in groups of over 100. In the evening, like other sharks, they become solitary hunters. National Geographic explains that hammerheads can be found in warm tropical waters, but during the summer Hammerheads participate in a mass migration to search for cooler waters.
Breeding Info:Reproduction occurs only once a year for hammerhead sharks, and usually occurs with the male shark biting the female shark violently until she agrees to mate with him. The hammerhead sharks exhibit a viviparous mode of reproduction with females giving birth to live young. Like other sharks, fertilization is internal with the male transferring sperm to the female through one of two intromittent organs called claspers.
Special Behavior/Unique Anatomy:Some sharks migrate over great distances to feed and breed. This can take them over entire ocean basins. While some shark species are solitary, others display social behavior at various levels. Hammerhead sharks, for instance, school during mating season around seamounts and islands.
Weird/Interesting Info: Scientists believe that the hammerhead shark’s head allows it to see well. Indeed, rather than using each eye independently like most fishes do, the hammerhead shark uses both eyes together to see just like we do. The wider apart the eyes are, the greater the range of the vision. Hammerhead sharks have a 360-degree range of vision. This means that they can see all around them at all times.

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