How much do you know about the hammerhead shark? Researchers from Ireland and the United States performed genetic tests on a baby hammerhead born in an Omaha, Nebraska aquarium in 2001. In parts of the Atlantic Ocean, their populations have declined by over 95% in the past 30 years. Fact 1: The length of a Hammerhead shark varies greatly. Since sharks do not have mineralized bones and rarely fossilize, their teeth alone are commonly found as fossils. Like all other hammerhead sharks, the scalloped hammerhead has a "hammer", which is known as the... Taxonomy. Fun facts for kids help increase awareness and understanding of these one-of-a-kind carnivores.. Some scientists have theorized that the hammer-like shape of the head may have evolved to enhance the shark’s vision. Hammerhead sharks have a distinctive profile and are one of the easiest sharks to identify. The IUCN lists the conservation status of the great and scalloped hammerhead as endangered. The IUCN lists a number of hammerhead shark species as Endangered or Vulnerable, and they have not assessed a few species yet. It is found abundantly in depths of 1600 feet (500 meters) and is also often found in shallower waters of about 80 feet (25 meters). The great hammerhead (Sphyrna mokarran) is the largest species of hammerhead shark. What are some of the most amazing facts about Hammerhead sharks?! Just enter your email address to join. The hammerhead’s eyes are positioned on the sides of the shark’s flattened “hammer” head, which gives it 360-degree … Unfortunately, humans are much more impactful on these sharks. These cartilaginous fishes vary in size; the small scalloped … The 1. Here are some facts about Hammerhead sharks. Hammerhead sharks can swim up to 25 km/h (15 mph). An international team of scientists surprised the world by reporting that female hammerhead sharks can reproduce without males through parthenogenesis, or “virgin birth”. The lifespan of hammerhead sharks is estimated to be 25 to 35 years. 2000. Despite the fear they have traditionally engendered, these days, most divers who see a hammerhead shark regard it as a rare and exciting experience. They are It was previously believed that sharks reproduced only sexually. Great hammerhead sharks are viviparous (give birth to live young). There are nine species of hammerhead sharks that inhabit all oceans of the world. Hammerheads are found worldwide in warmer waters along coastlines and continental shelves. During mating, the male transfers sperm to the female via his claspers. The dangerous species of hammerhead sharks include the smooth, great and scalloped hammerheads. Many, but not necessarily mutually exclusive functions have been proposed for the hammer-like shape of the head, including sensory reception, vision, manoeuvering, and prey manipulation. A photo of a winghead shark (eusphyra-blochii). The Scalloped Hammerhead was always the most common Hammerhead Shark around. Hammerhead shark is probably the weirdest type of sharks. During the day it swims about in so-called “schools” (groups) of up to 100 animals. Scalloped hammerhead Description. Great hammerhead sharks may mate at the surface, which is unusual behavior for a shark. Hammerhead Sharks are known for their unique shape of their head, which is flattened and elongated and passes the sides of its body. Learn more about this distinctive animal, named for the unusual shape of it's head. A photo of a scalloped hammerhead (Sphyrna lewini). It was renamed Sphyrna lewini in 1834. Hammerheads areContinue Reading There are at least nine known species of hammerhead sharks. The unique traits and physical features of hammerhead sharks serve several purposes and look pretty cool. The Scoophead shark is another Hammerhead species to mention in our facts about Hammerhead sharks, and can grow to an average length of 3 to 5 feet. During the summer, hammerheads participate in a mass migration to search for cooler waters. The largest species is the Great hammerhead. Only 17 unprovoked shark bites have been recorded in the past several centuries. Believe it or not, the hammerhead has the ability to sport a nice tan! Bloodthirsty, tricky and lightning-fast – she aroused fear at people at all times. One theory is that the wide expanse of head allows for a broader spread of this sensory organ. Out of nine species, two are listed as endangered (great hammerhead and scalloped hammerhead) and one as vulnerable (golden hammerhead) species. 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. This happens because hammerheads are often cruising in shallow water or near the surface for extended periods of time. Physical Features. The great hammerhead shark is the largest of all nine hammerhead species. All Rights Reserved. A small percentage of the population, mostly or all females, are much larger. Hammerhead Shark Reproduction: A … Hammerheads are usually gray-brown to olive-green on top. The phrase "hammerhead shark" is used to describe a group of sharks in the Sphyrnidae family. Hammerhead sharks can swim up to 25 km/h (15 mph). Hammerhead sharks can be found both in deep and shallow waters. Even though they're only about the length … The longest great hammerhead on record was 6.1 m (20 ft). The great and the scalloped hammerheads are listed on the World Conservation Union’s (IUCN) 2008 Red List as endangered, whereas the smalleye hammerhead is listed as vulnerable. According to DNA studies, the ancestor of the hammerheads probably lived in the Miocene epoch about 20 million years ago. Hammerhead sharks are the 9 extant species of sharks belonging to Sphyrnidae family, typically characterized by a flattened head resembling a hammer. With the help of harpoons, scientists want to equip the sharks with transmitters. Scalloped hammerhead sharks are also at risk in regions where the hammerheads are not hunted themselves because they often get caught in fishing nets. All hammerhead sharks are viviparous – a female gives birth to live young that grow inside the female shark, similar to humans. Not only does the hammer at as an organ of balance, but its body seems to be specifically designed to twist and bend. A photo of a great hammerhead (Sphyrna mokarran). And finally, we have the Winghead shark. Sign up for our weekly facts e-mail. Hammerhead sharks can be found in warm waters worldwide. A hammerhead shark uses its wide head to trap stingrays by pinning them to the seafloor. Recieve fun facts in your inbox every Monday! The scalloped hammerhead shark belongs to the large hammerhead species, and like all representatives of this family, has the typically formed "hammer" consisting of a central dent and an arched front edge (hence the name). Hammerhead sharks are one of the most distinctive-looking sea creatures thanks to their wide, t-shaped heads. Hammerhead shark species can weigh as little as 6.6 pounds and as much as 1,300 pounds. This unique eye placement allows them a 360 degree vertical view, which gives them a unique advantage against approaching predators and prey by allowing them to see what is above and below them simultaneously .

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