The longest great hammerhead on record was 6.1 m (20 ft). Hammerhead sharks, or sphyrnids, are perhaps the most distinctive and unique of all sharks. These organs may even detect the electrical impulses of prey buried in sediment. They may migrate seasonally, moving equatorward during the winter and poleward during the summer. Most hammerhead species are fairly small but can grow up to 20 feet, about as long as a medium sized car, and can weigh up to 1,000 pounds. On top of this, one of the most interesting facts about hammerhead sharks is that this shark species uses electromagnetism to identify its prey. Hammerhead shark teeth have smooth edges, with a distinct notch on the distal side of the tooth. Humans often eat the meat of hammerhead sharks; however, consumers should be aware that large specimens may have high levels of mercury and other pollutants. They are greyish-brown in coloration with a light underside, and sport a Corrections? Will 5G Impact Our Cell Phone Plans (or Our Health?! ), The Secret Science of Solving Crossword Puzzles, Racist Phrases to Remove From Your Mental Lexicon. Sep 13, 2013 - Hammerhead sharks have a distinctive and unusual head structure. Over time, the smaller teeth in the back grow and move up, replacing the ones in front. In contrast, larger hammerhead sharks possess sizable bladelike teeth and often prey on larger fishes, squid, small sharks, and stingrays. The great hammerhead is the largest, and typically measures about 13 feet long and weighs about 500 pounds. Articles from Britannica Encyclopedias for elementary and high school students. Birth usually occurs during the spring and summer months, and females will usually give birth in shallow, protected coastal waters. Although they are considered one of the most recently evolved groups of sharks, sphyrnids are known to date back in the fossil record to at least the early Miocene Epoch (about 23 million to 5.3 million years ago). This means that it doesn't have bones like we do. Most species of sharks can have up to 15 series of teeth in their jaws, which are the most powerful jaws on the planet. Hammerhead Shark Features The hammerhead shark, like other sharks, is a cartilaginous fish. Is the Coronavirus Crisis Increasing America's Drug Overdoses? In order to have the diet that they have, hammerhead sharks need to have some strong and specially designed teeth. In many instances, witnesses have seen the assailant...…, The oddest-looking sharks are the hammerheads (Sphyrna), whose heads resemble double-headed hammers...…. Previous to scientific research, it was thought that the cephalofoils were used to enhance poor vision in the shark but studies have shown that not only do the … FUN FACT There are nine species of hammerhead sharks. Sharks can’t swim backwards. Hammerheads possess flat bodies which allow them to swim silent on the ocean floor. -> Link to Hammerhead shark teeth. Most shark species have pointed snouts that house several rows of sharp triangular teeth. Sink your teeth into our super shark quiz, check out our ocean’s weirdest creatures and 10 facts about bottlenose dolphins! Fourth, the wide underside of the head—with its expanded surface area—houses more electroreceptive organs (see sensory reception), which are important for detecting the electrical impulses of prey. The hammer-like shape of the head means that hammerhead sharks can sweep for prey more effectively. This feature gives the shark enhanced maneuverability to snap up its prey. Fact Check: What Power Does the President Really Have Over State Governors? Although most have 5 and then there is the bull shark that has 50 rows of teeth. The waters off Malpelo Island, Colombia, are home to a diverse marine life, which includes the scalloped hammerhead shark. As the name suggests, the great hammerhead is the largest of the 9 species. Third, the extended spacing of the eyes may provide a wider field of view; it may also widen the lateral field of view and increase anterior depth perception. Few species have thrived on our planet for as long — and fewer have been so misunderstood. The hammerhead family ranges from dark brown to grey on their dorsal side and have a grey or white belly, sometimes even olive in colour which performs as a sort of camouflage while hunting. A hammerhead scans the sand for its favorite meal, the stingray. Hammerhead Shark Facts and Information Call it strange or funny but seeing hammerhead sharks will surely remind you that very common tool you use in driving nails or help in breaking useless objects, the hammer. The smaller bonnethead sharks have thicker, flattened crushing teeth and often prey on crabs, shrimp, and fishes buried in the sand. The peculiar shapes of sphyrnid cephalofoils appear to serve several purposes. Over a single lifetime, a shark can grow nearly 50,000 teeth and in the case of larger sharks even more. Get information about hammerhead sharks from the DK Find Out website for kids. Hammerhead shark facts for kids. The great hammerhead shark has up to several rows of teeth in each jaw, with 24 to 37 in each row. Hammerhead shark facts for kids are coming in our education group of facts for kids to learn more about the world and the whole universe. Pendent shark – the number of dental rows is 20-28 on each jaw, with a total of 300-400 teeth. Lastly, many larger hammerhead species hunt stingrays and other benthic (that is, bottom-dwelling) fish; they have been observed using the wide margins of their heads to ram and pin prey to the substrate before biting them. dorsal fin- helps it move around in the ocean. Hammerhead sharks prey on a wide array of fish, cephalopods, and crustaceans, but specific prey varies between the different species. The phrase "hammerhead shark" is used to describe a group of sharks in the Sphyrnidae The average great hammerhead measures up to 3.5 m (11 ft) long and weighs over 230 kg (510 lb). 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. Teeth of this shark can reach a height of 7 inches. Of all sharks, the hammerhead has the oddest looking head. 5 Facts about sharks Raise awareness for why people need sharks For 400 million years, sharks have roamed every ocean on Earth. These teeth also have a deep nutrient groove. Using the side of its head to pin a ray flat to the ocean's floor, the shark rotates its head, taking off large chunks of the ray with its deadly bite. Chief curator, Department of Natural Sciences, Oakland Museum of California. These cartilaginous fishes vary in size; the small scalloped bonnethead (S. corona) measures only 90 cm (35 inches) long, whereas the great hammerhead (S. mokarran) grows to over 6.1 metres (20 feet) in length. Let us know if you have suggestions to improve this article (requires login). A small percentage of the population, mostly or all females, are much larger. Overview of several shark species, including the lemon, tiger, and hammerhead sharks. On an average basis, the hammerhead shark ranges from 1m to 6m+, with the largest being the Great Hammerhead. The great hammerhead is dark brown to light gray to olive above, fading to white on the underside. Hammerhead sharks are generally gray-brown to olive-green with off-white undersides, and mouths filled with serrated triangular-shaped teeth. Learn more about these interesting creatures below. Learn More Out of stock Quick Shop Add to Compare Add to Wish List Hammerhead shark : Modern $25.00 A LARGE, GEM. 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