It takes a few more years and the species will completely extinct across the world. They are considered dangerous to humans, but they are not particularly aggressive.

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This family belongs to the order Carcharhiniformes and has two genera: Eusphyra and Sphyrna, the first with one species and the latter with the remaining nine. The male shark bites the female shark until she agrees to mate with him. Unfortunately, this eye placement causes a huge blind spot directly in front of their nose! They dwell the Mesopelagic zone and up to 80 meters deep. There are many different species of sharks that range in size from the size of a person's hand to bigger than a bus.

Subsequently, 12 to 50 offspring are born with a length of 18 centimeters and a soft, rounded head. Hammerhead Sharks are Viviparous, which means pups grow inside the female shark, similar to humans.

All hammerhead sharks are easily recognized by the unique and striking head they have, which is the origin of their name in English (Hammerhead shark). The fertilization of the eggs occurs inside the shark like other ones. The largest of them all is the Great Hammerhead Shark. Attacks on humans are extremely rare. Unlike humans, the mother gives birth to 20 to 50 live pups at once. The Great Hammerhead is feared by smaller Hammerhead species due to frequent cannibalism. These sharks are often seen swimming at the bottom of the oceans while staking their prey. It is believe that these schools are largely for protection from the opposite sex. But Scalloped Hammerheads are often observed building large schools of 100 or more individuals. The female hammerhead shark exhibits the ovoviviparous mode to birth the live young. The lifespan for most Hammerheads is between 25 and 35 years.

This family of sharks has an unusual behavior by forming groups or “schools” of up to 500 members. Most other species only grow to 4 meters (13ft).

Once pregnant, the female carries the eggs inside for 8-10 months which feed through the yolk sac. Even the smaller species grow to three feet in length, so you would need an incredibly large tank to house them comfortably. Their diet includes bony fish, squid, octopus, crustaceans and their favorite food: rays. There are 9 different species of Hammerheads: The largest of them all is the Great Hammerhead Shark. The unique shape of the hammerhead shark’s head allows having wide vision than other sharks. Hammerhead sharks do not make good pets. Three species of hammerhead sharks actually don’t have the hammer-shaped head. They are mostly found in the warm tropical waters but during the summer, they migrate to the cold waters. For the most part, these sharks are mavericks, thinking and acting for themselves and by themselves. Studies are currently ongoing to learn more about this amazing animal.

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The hammerheads are nocturnal which means they are most active during the evening. As with all other shark species, Hammerhead Sharks have a special sense of feeling using electro receptors. There are total nine known species of hammerhead shark. Of course, without fins, the shark is unable to swim and subsequently dies. The hammerhead generally seen in the schooling and the group can exceed the members of 100 sometimes. This is known as the omnivorous species of the shark.

Believe it or not, the Hammerhead has the ability to sport a nice tan!

The eyes of the sharks have at both ends of the head.

[CDATA[ So, they have the wide vision. Hammerhead sharks rarely attack the human being. This allows them a vertical 360 degree view, which means the Hammer head shark is able to see both above and below quite easily. The sharks are rarely seen on the coast. They are one of very few animals who tan from the sun. Each group has a social structure that determines hierarchical dominance according to size, age, and sex. A hammerhead shark is any of the ten species that make up the Sphyrnidae family. This happens to the shark because Hammerheads are often cruising in shallow water or near the surface for extended periods of time.

Baby Hammerhead Shark Pups do not receive parental care, but they huddle together in warm waters, departing when they can defend themselves. At greater weight and length, more pups. Some populations of hammerhead sharks are stable and are not considered endangered. Unfortunately, many species of Hammerhead Sharks are at a high risk of extinction. Four species of the hammerhead is currently threatened by extinction while in Africa, it already declared critically endangered. They can see above and below them at the same time. It’s likely that over time, they are beginning to live longer lives. Different species of hammerhead sharks inhabit temperate and tropical waters around the world, along coastal lines and continental shelves.

In the evening they become solitary hunters as like other sharks. This is especially true for Great Hammerheads. They have nostrils at the tip of their head and large eyes at each side of it. According to the IUCN Red List of Threatened Species, this is the status of species of hammerhead shark: Whitefin hammerhead (Sphyrna couardi) – Not evaluated, Carolina hammerhead (Sphyrna gilberti) – Not evaluated, Scoophead (Sphyrna media) – Data deficient, Bonnethead (Sphyrna tiburo) – Least concern, Scalloped bonnethead (Sphyrna corona) – Near threatened, Smooth hammerhead (Sphyrna zygaena) – Vulnerable, Golden hammerhead (Sphyrna tudes) – Vulnerable, Great hammerhead (Sphyrna mokarran) – Endangered, Winghead shark (Eusphyra blochii) – Endangered, Scalloped hammerhead (Sphyrna lewini) – Endangered, https://en.wikipedia.org/wiki/Hammerhead_shark, http://news.bbc.co.uk/earth/hi/earth_news/newsid_8376000/8376740.stm, https://www.flmnh.ufl.edu/fish/discover/species-profiles/sphyrna-mokarran, A. Peter Klimley. Total length is the straight line distance from the most forward part of the head with the mouth closed to the farthest tip of the tail with the tail compressed or squeezed together while the fish is lying on its side.

Most sharks are intermediate in size, about the same size as people, 5-7 feet (1.5-2.1 m) long.

The great hammerhead shark is the largest of the hammerhead sharks.

Only 3 of the 9 Hammerhead species (Great, Scalloped, and Smooth Hammerheads) have ever attacked a human. Since much of its pray hides beneath the sandy floor, the Hammerhead traces the sea bed and “scans” for living creatures it can eat. These sharks reproduce once a year by internal fertilization, and the number of offspring that a female deliver has a direct relation to its size. These sharks are often seen swimming at the bottom of the oceans while staking their prey. Fisherman can sell these fins for very high prices, so many times a Hammerhead is captures, has its fins removed, then is dumped back into the Ocean. Hammerhead Shark is declared an endangered species in the most of the regions.

Few species of sharks do this. The eyes of this shark are placed on th outer edges of the hammer. Hammerhead sharks are not commonly known to attack humans but can be aggressive if a human came into contact with a hammerhead shark. Not only does the hammer at as an organ of balance, but its body seems to be specifically designed to twist and bend. But what makes this shark so unique is its head, right? Most hammerhead shark species are very small and harmless. ... At greater weight and length, more pups. The species is already declared vulnerable in few regions while endangered and critically endangered in other regions like Africa.

But it can be dangerous to swim beside this shark.

There is no fatality recorded by hammerhead shark for years. The smooth hammerhead (Sphyrna zygaena) is another large shark that can grow to about 13 feet (4 meters) in length.These types have a large "hammer" head but without a notch in its center. The smallest shark is the Spined Pygmy shark, which, when fully-grown, is only 7-8 inches (18-20 cm) long. Humans are the #1 threat to all species of Hammerhead Sharks. These species reached this status because of overfishing and illegal trade, although there are not appropriate sanctions or conservation plans for the most endangered species of hammerhead sharks. Females will be bombarded with males when left alone. Hammerhead Sharks love tropical, warm waters from all over the world.