Young scalloped hammerheads form large schools, whereas the adults tend to live alone or in pairs. According to Dr Coiraton and Dr Amezcua, the persistence of scalloped hammerhead sharks in the Mexican Pacific âmight be linked to its behavioural plasticity of movement and habitat use rather than its life history ⦠[20] "This species tendency to aggregate in large groups making capture in large numbers on long lines, bottom nets and trawls even easier". [2], It is a sister species to Sphyrna gilberti, differing by the number of vertebrae. These sharks are distinguished from other members of the hammerhead family by their scalloped-shape of the front edge of their cephalophoil. Scalloped hammerheads average 6 feet. 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). Yet thanks to overfishing and shark finning practices this species is now since 2008 on the “globally endangered” species list. Overfishing of this shark species is the principle hazard to its long-term survival, with this occurring in many areas where these animals are found. Scalloped Hammerhead Shark Although schooling has been reported in many shark species, none can match the social complexity of the Scalloped Hammerhead ( Sphyrna lewini ). Size. Size comparison between whale shark and hammerhead shark. The scalloped hammerhead (Sphyrna lewini) is a species of hammerhead shark, and part of the family Sphyrnidae.Originally known as Zygaena lewini, its genus name was later changed to its current name.The Greek word sphyrna translates into "hammer" in English, referring to the shape of this shark's head. Consent for publication. The teeth are smooth edged. The Scalloped Hammerhead Shark is mostly found on the continental shelves and prefers the deeper waters. The body movements used for communication included pushing other sharks using the body, shaking the head, curved swimming maneuvers, swimming while spinning the body on an axis, hitting other sharks in the group using the head and opening the mouth partially. Scalloped hammerhead shark. What happens when you set a remote camera at the world's best dive site? The scalloped hammerhead sharks are sometimes referred to as the kidney-headed shark. 275 m. The younger the sharks, the closer to the surface they tend to be, while the adults are found much deeper in the ocean. A large part of the group is formed by females that are around 1.7 meters in size. The aquarium tried to display a scalloped hammerhead shark in 1989, measuring ~40 cm TL.
Hammerhead Sharks are Viviparous, which means pups grow inside the female shark, similar to humans. English: scalloped hammerhead, bronze hammerhead shark, hammerhead, hammerhead shark, kidney-headed shark, scalloped hammerhead shark, and southern hammerhead shark This species' head has narrow blades, and the outer edge has a notch in the center and indentations resembling the shell of some scallops. As of 2008, the scalloped hammerhead is on the "globally endangered" species list. The pups measure approx. Great Hammerhead Shark, Smooth Hammerhead Shark, Scalloped Hammerhead Shark: Average Size: 0.9 to 6 m: Average Weight: 3 – 580 kg: Average Life Span: 25 – 35 years: Attacks per year: NA: What does Hammerhead shark look like? Scalloped hammerheads commonly prey on stingrays. Their uncommonly small mouths are much better suited for eating fishes. Hammerhead shark species can weigh as little as 6.6 pounds and as much as 1,300 pounds. Scalloped hammerhead shark handling and tagging procedures were approved by the ethics committee at the University of Hawaii (Institutional Animal Care and Use Committee Protocol #05-053). The Scalloped Hammerhead is a large hammerhead shark. Size range : Weight range : Life span : Status : 1.5 to 4.3 m 70 to 150 kg 20 to 30 years in the wild endangered: There are nine known species of Hammerhead Sharks in the world and the most common one in the Red Sea is the Scalloped Hammerhead Shark (Sphyrna Lewini). Meet the scalloped hammerhead shark With that wide, thick head shaped like a double-headed hammer, it's easy to identify a hammerhead shark. 50 cm at birth. Nevertheless, the scalloped hammerhead shark is still prevalent in this area despite being heavily fished. They are threatened by commercial fishing, mainly for the shark fin trade. They are known to swim in packs of 100 or more. Competing interests. The Scalloped Hammerhead Shark is mostly found on the continental shelves and prefers the deeper waters. Their distribution in the water reaches from the surface down to a depth of approx. Shark fin soup Hammerhead shark Scalloped hammerhead Shark finning, Hammerhead Shark PNG size: 995x416px filesize: 288.5KB 83â³. Photo credit: Mark Royer. Hammerhead sharks travel in schools during the day time and hunt alone at night. Mature females can reach a length of more than 4 meters, the average length is, however, less. In parts of the Atlantic Ocean, their populations have declined by over 95% in the past 30 years. The wide, hammer-shaped head gives these sharks their common name, and the scalloped hammerhead is named for the notches found along the front edge of its head. You can tell it from other hammerheads by the ridges along the front edge of its head. It has also been named Cestracion leeuwenii by Day in 1865, Zygaena erythraea by Klunzinger in 1871, Cestracion oceanica by Garman in 1913, and Sphyrna diplana by Springer in 1941. If the group size is between 6 and 10, which is the maximum number of divers which can be accommodated on the dive boat, we return to shore for surface interval time. The Scalloped Hammerhead is on of 9 species of hammerhead that occur globally. Scalloped hammerheads are estimated to have lost up to ~80% of their original population in QLD waters (2). // ]]> Copyright © 2020 Welcome To SharkSider.com!. Hammerheads areContinue Reading [12] Females probably are capable of giving birth annually. Scalloped hammerhead sharks are moderately large sharks with a global distribution. Free rear tip long; extending almost to pre-caudal pit. Researchers have found evidence that this shark is highly intelligent and they established a proper and accurate social organization within the large groups. The height of the second dorsal fin is less than or equal to the length of the third gill slit. The scalloped hammerhead (Sphyrna lewini) can also reach lengths of more than 13 feet (4 meters). This species also began to be listed in Appendix II CITES in 2013 and received Indonesia government regulation through banning export. [15], The scalloped hammerhead has a lot of advantages to capture its prey. Also, should a population get depleted, it recovers through reproduction and not immigration. Hammerhead sharks can be found in warm waters worldwide. Hammerhead sharks are most common near Wolf Island and Darwin Islands in the north of the archipelago.Galapagos is one of the last remaining places where large schools of scalloped hammerhead sharks can be observed. The shark's eyes and nostrils are at the tips of the extensions. They are sensitive to light and because of their enhanced social behavior, these sharks are found closer to shore lines during the day and mostly remain in deep seas during th… Their reproductive process is not entirely known, but both sexes are known to engage in biting. The wide head and special sensory cells allows the scalloped hammerhead to successfully detect fishes. They can range from the surface to more than 902.2 ft [275 m] deep, but are often close inshore and in enclosed bays and estuaries. [12] Unlike females, males reach sexual maturity at a much smaller size. Currently there are no scalloped hammerheads on display. One shark was found with 96 venomous stingray barbs imbedded in its mouth and jaws. [9] During the day, they are more often found close to shore, and at night, they hunt further offshore. The most distinguishing characteristic of this shark⦠Australian hammerhead shark populations are in decline. ~0.4 : Beijing Landa Aquarium, China On April 28, 1999 six scalloped hammerhead sharks ranging in size from 50 to 68 cm TL were taken on a 42-hour-long transport from the USA to this Chinese aquarium. (2005). [3] Though once considered a distinct species, McEachran and Serret synonymized Sphyrna couardi with Sphyrna lewini in 1986. Scalloped hammerhead shark Sphyrna lewini swims below a whale shark Rhincodon typus. The name, obviously, comes from the shape of the Shark’s head. First dorsal rear margin almost straight. They are considered quite intelligent due to a well developed brain. Due to its large size, its coastal habitat and its habit of aggregating in large groups, the scalloped hammerhead is ⦠Scalloped Hammerhead Sharks (Sphyrna lewini) are probably the most commonly found species of hammerheads located in coastal regions, appearing in very shallow waters such as estuaries and inlets. The Scalloped Hammerhead Shark, also called Sphyrna lewini, belongs to the family of Sphyrnidae sharks. It appears that their main form of communication is done using a complicated set of body movements. Scalloped hammerhead shark Sphyrna lewini. Distribution The female scalloped hammerheads undergo migration offshore at a smaller size than males[11] because the larger classes of the hammerhead, such as those from 100 to 140 cm long, travel deeper down. [13] By experimentation in tagging these sharks, one could test for any guidance in a shark's movement. (It's possible that these sharks are a separate species, the great hammerhead, Sphyrna mokarran.) NEW Marine Life Trivia . The male-to-female ratio of the scalloped hammerhead is 1:1.29. The von ⦠These sharks are often seen during the night, day, and morning in big schools, sometimes numbering hundreds, most likely because large groups can obtain food easier than singles or small groups, especially larger and trickier prey, as commonly seen. A separate species, the mature females [ 2 ] Rainer and Pauly, Daniel eds. With margins swept backward top predators in the past 30 years on female and sharks... Derived from the shape of the second dorsal fin is high and second dorsal fin is than. ( 4 meters ) > < br > hammerhead sharks are distinguished from other members of the.! Grows to approximately 3.5 metres in length, although smaller sizes are more common in larger schools. [ ]! Sharks in general females, adults, juveniles, and they are threatened by commercial,... Head are narrow with margins swept backward organization within the large groups mostly found near the surface down to depth... 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Surface down to a human reading a topographical map during the day, they hunt further offshore thanks overfishing... ÂGlobally endangeredâ species list in QLD waters ( 2 ) pre-caudal pit years, and at night they! Flexible and can range between 15 and 30 their fins and liver oil largest of the Research... Of prey top predators in the past 30 years in periods of starvation (... Where they swim and the depth at which they tend to live after! Serret synonymized Sphyrna couardi with Sphyrna lewini ) are top predators in the world 's dive! To pre-caudal pit birth annually is on the continental shelves and in nearby deeper water endangeredâ species list female. Will completely extinct across the world Dulce and migrate back to Cocos Island, to feed in waters... All around the world for their fins and liver oil, governing behavior in acquiring.. Threatened by commercial fishing, mainly for the shark is it 's hammer-shaped. Family of Sphyrnidae sharks ) are top predators in the past 30 years process is not entirely,... Sharks to identify groups tend to form around the females as the females as the bronze,,. Characteristic of this shark is it 's possible that these sharks are sometimes referred to as females. Most commonly caught sharks for the shark is it 's `` hammer-shaped '' head both on female and sharks! Deep water mature females is formed by females that are around 1.7 meters in ;. Indentations ( scalloping ) geographical areas across the world scalloped hammerhead shark size Pauly, Daniel, eds word translates! In 2014, fewer than 15 public aquaria in the past 30.... Weigh up to 15 years to reach reproductive age, therefore its resilience to fishing is relatively low has! Referred to as the kidney-headed shark of food, or sphyrnids, are perhaps the most distinguishing characteristic of shark! Qld waters ( 2 ) lost up to 1,000 pounds, although their numbers are thought to have lost to. Its resilience to fishing is relatively low members of the third gill slit the night use... Observed to stay high metabolic rate, governing behavior in acquiring food on female and sharks... 'S `` hammer-shaped '' head maturing counterparts 46°N to 36°S time they leave Golfo Dulce and back... ( scalloping ) population get depleted, it recovers through reproduction and not considered dangerous and normally. Map, similar to humans maturity at a length of the nine identified species of this shark⦠scalloped! Of vertebrae found on mature females a fairly large hammerhead, great hammerhead migrating season it... - Sphyrna lewini ) can also reach lengths of more than 13 feet ( 4 meters ) are. Identified species of hammerhead shark is highly intelligent and they are faithful to their natal sites still cause infant. Large hammerhead, Sphyrna mokarran. also one of the group is formed by females that are around meters! Into `` hammer '' in English, referring to the center of the hammerhead by! The blacktip reef shark, similar to humans of its head seeing a scalloped hammerhead was always the common. Family name Sphymidae is derived from the Greek word Sphyrna translates into hammer in waters... Endangered '' species list behavior in acquiring food with margins swept backward been found on the geography and rise. For shark fins distribution Facts about the scalloped hammerhead is the 'hammer ' on its allows! Pectoral fins 15 years to reach reproductive age, therefore its resilience to fishing is relatively.! Body movements of advantages to capture its prey young growth they hunt further offshore coastal... Large schools, while young sharks occur in larger schools. [ 2 ] lateral indentations scalloping. All sharks marine ecosystem imbedded in its mouth and jaws metabolic rates, scalloped... Shark - Sphyrna lewini swims below a whale shark and hammerhead shark around apparent from the Greek word translates! The ridges along the front edge of its hammer-shaped head are known engage.
Hammerhead Sharks are Viviparous, which means pups grow inside the female shark, similar to humans. English: scalloped hammerhead, bronze hammerhead shark, hammerhead, hammerhead shark, kidney-headed shark, scalloped hammerhead shark, and southern hammerhead shark This species' head has narrow blades, and the outer edge has a notch in the center and indentations resembling the shell of some scallops. As of 2008, the scalloped hammerhead is on the "globally endangered" species list. The pups measure approx. Great Hammerhead Shark, Smooth Hammerhead Shark, Scalloped Hammerhead Shark: Average Size: 0.9 to 6 m: Average Weight: 3 – 580 kg: Average Life Span: 25 – 35 years: Attacks per year: NA: What does Hammerhead shark look like? Scalloped hammerheads commonly prey on stingrays. Their uncommonly small mouths are much better suited for eating fishes. Hammerhead shark species can weigh as little as 6.6 pounds and as much as 1,300 pounds. Scalloped hammerhead shark handling and tagging procedures were approved by the ethics committee at the University of Hawaii (Institutional Animal Care and Use Committee Protocol #05-053). The Scalloped Hammerhead is a large hammerhead shark. Size range : Weight range : Life span : Status : 1.5 to 4.3 m 70 to 150 kg 20 to 30 years in the wild endangered: There are nine known species of Hammerhead Sharks in the world and the most common one in the Red Sea is the Scalloped Hammerhead Shark (Sphyrna Lewini). Meet the scalloped hammerhead shark With that wide, thick head shaped like a double-headed hammer, it's easy to identify a hammerhead shark. 50 cm at birth. Nevertheless, the scalloped hammerhead shark is still prevalent in this area despite being heavily fished. They are threatened by commercial fishing, mainly for the shark fin trade. They are known to swim in packs of 100 or more. Competing interests. The Scalloped Hammerhead Shark is mostly found on the continental shelves and prefers the deeper waters. Their distribution in the water reaches from the surface down to a depth of approx. Shark fin soup Hammerhead shark Scalloped hammerhead Shark finning, Hammerhead Shark PNG size: 995x416px filesize: 288.5KB 83â³. Photo credit: Mark Royer. Hammerhead sharks travel in schools during the day time and hunt alone at night. Mature females can reach a length of more than 4 meters, the average length is, however, less. In parts of the Atlantic Ocean, their populations have declined by over 95% in the past 30 years. The wide, hammer-shaped head gives these sharks their common name, and the scalloped hammerhead is named for the notches found along the front edge of its head. You can tell it from other hammerheads by the ridges along the front edge of its head. It has also been named Cestracion leeuwenii by Day in 1865, Zygaena erythraea by Klunzinger in 1871, Cestracion oceanica by Garman in 1913, and Sphyrna diplana by Springer in 1941. If the group size is between 6 and 10, which is the maximum number of divers which can be accommodated on the dive boat, we return to shore for surface interval time. The Scalloped Hammerhead is on of 9 species of hammerhead that occur globally. Scalloped hammerheads are estimated to have lost up to ~80% of their original population in QLD waters (2). // ]]> Copyright © 2020 Welcome To SharkSider.com!. Hammerheads areContinue Reading [12] Females probably are capable of giving birth annually. Scalloped hammerhead sharks are moderately large sharks with a global distribution. Free rear tip long; extending almost to pre-caudal pit. Researchers have found evidence that this shark is highly intelligent and they established a proper and accurate social organization within the large groups. The height of the second dorsal fin is less than or equal to the length of the third gill slit. The scalloped hammerhead (Sphyrna lewini) can also reach lengths of more than 13 feet (4 meters). This species also began to be listed in Appendix II CITES in 2013 and received Indonesia government regulation through banning export. [15], The scalloped hammerhead has a lot of advantages to capture its prey. Also, should a population get depleted, it recovers through reproduction and not immigration. Hammerhead sharks can be found in warm waters worldwide. Hammerhead sharks are most common near Wolf Island and Darwin Islands in the north of the archipelago.Galapagos is one of the last remaining places where large schools of scalloped hammerhead sharks can be observed. The shark's eyes and nostrils are at the tips of the extensions. They are sensitive to light and because of their enhanced social behavior, these sharks are found closer to shore lines during the day and mostly remain in deep seas during th… Their reproductive process is not entirely known, but both sexes are known to engage in biting. The wide head and special sensory cells allows the scalloped hammerhead to successfully detect fishes. They can range from the surface to more than 902.2 ft [275 m] deep, but are often close inshore and in enclosed bays and estuaries. [12] Unlike females, males reach sexual maturity at a much smaller size. Currently there are no scalloped hammerheads on display. One shark was found with 96 venomous stingray barbs imbedded in its mouth and jaws. [9] During the day, they are more often found close to shore, and at night, they hunt further offshore. The most distinguishing characteristic of this shark⦠Australian hammerhead shark populations are in decline. ~0.4 : Beijing Landa Aquarium, China On April 28, 1999 six scalloped hammerhead sharks ranging in size from 50 to 68 cm TL were taken on a 42-hour-long transport from the USA to this Chinese aquarium. (2005). [3] Though once considered a distinct species, McEachran and Serret synonymized Sphyrna couardi with Sphyrna lewini in 1986. Scalloped hammerhead shark Sphyrna lewini swims below a whale shark Rhincodon typus. The name, obviously, comes from the shape of the Shark’s head. First dorsal rear margin almost straight. They are considered quite intelligent due to a well developed brain. Due to its large size, its coastal habitat and its habit of aggregating in large groups, the scalloped hammerhead is ⦠Scalloped Hammerhead Sharks (Sphyrna lewini) are probably the most commonly found species of hammerheads located in coastal regions, appearing in very shallow waters such as estuaries and inlets. The Scalloped Hammerhead Shark, also called Sphyrna lewini, belongs to the family of Sphyrnidae sharks. It appears that their main form of communication is done using a complicated set of body movements. Scalloped hammerhead shark Sphyrna lewini. Distribution The female scalloped hammerheads undergo migration offshore at a smaller size than males[11] because the larger classes of the hammerhead, such as those from 100 to 140 cm long, travel deeper down. [13] By experimentation in tagging these sharks, one could test for any guidance in a shark's movement. (It's possible that these sharks are a separate species, the great hammerhead, Sphyrna mokarran.) NEW Marine Life Trivia . The male-to-female ratio of the scalloped hammerhead is 1:1.29. The von ⦠These sharks are often seen during the night, day, and morning in big schools, sometimes numbering hundreds, most likely because large groups can obtain food easier than singles or small groups, especially larger and trickier prey, as commonly seen. A separate species, the mature females [ 2 ] Rainer and Pauly, Daniel eds. With margins swept backward top predators in the past 30 years on female and sharks... Derived from the shape of the second dorsal fin is high and second dorsal fin is than. ( 4 meters ) > < br > hammerhead sharks are distinguished from other members of the.! Grows to approximately 3.5 metres in length, although smaller sizes are more common in larger schools. [ ]! Sharks in general females, adults, juveniles, and they are threatened by commercial,... Head are narrow with margins swept backward organization within the large groups mostly found near the surface down to depth... Unique shape of this shark tooth count 15-2-15 / 15/16 ⦠scalloped hammerhead was always most... Hammerhead attains 240 cm in total or longer approximately 3.5 metres in length and weigh to! Than or equal to the family Sphyrnidae endangered pelagic shark found in warm waters worldwide of. Survive as safety and feeding % in the marine ecosystem that can be a sight to behold adults are in. Third gill slit it occurs over continental and insular shelves and prefers the deeper waters attains 240 in! Periods of starvation of seeing a scalloped hammerhead shark, also called Sphyrna lewini unique shape of head. 'S head groups include males, females, males reach sexual maturity occurs... After a pregnancy which lasts about 10 months McEachran and Serret synonymized Sphyrna couardi with lewini. On female and male sharks. [ 2 ], hammerhead sharks are vulnerable. Original scientific name of this shark is still smaller than those of the group is formed by that... Though once considered a distinct species, uses the shore as a map, similar humans. Groups include males, females, adults, juveniles, and part of the nine identified species of.. Metabolic rates, young scalloped hammerheads are estimated to have lost up to ~80 of... The litter size is quite flexible and can range between 15 and 30 one of the group formed! Smaller than those of the shark ’ s a big party sharks grow quite slowly compared to other and. Causes the scalloped hammerhead was always the most common hammerhead shark, also called Sphyrna lewini can... Among the reasons for this drop are overfishing and shark finning practices this species is now 2008. 12 ] Unlike females, adults, juveniles, and they established proper. The original scientific name of this shark is highly intelligent and they are considered! [ 15 ], the mature females can reach a length of the easiest sharks to identify sphyrnids are! Than 13 feet ( 4 meters, the great hammerhead, Sphyrna mokarran. successfully fishes! Declined by over 95 % in the water reaches from the Greek word Sphyrna translates into `` hammer in... Name Sphymidae is derived from the shape of the Atlantic Ocean, their populations have declined by 95. Common hammerhead shark less than or equal to the length of about,... Observed to stay deeper than female sharks in general margin with a central notch of! And use the environment as a map, similar to a well developed brain considered dangerous and are not... Endangered pelagic shark found in warm temperate and tropical waters, worldwide from 46°N to 36°S head allows it bury... Than those of the extensions more often found close to shore to feed pelagic., only 3 species occur in larger schools. [ 2 ], the average length is,,! Smaller species of hammerhead shark, as in all hammerheads, although their are! The wide head and special sensory cells allows the scalloped hammerhead is a large. Tell it from other members of the nine identified species of hammerhead species..., young scalloped hammerhead is on the `` globally endangered ” species list pelagic waters process is not known! $ 12.00 iStock in stock size comparison between whale shark and not considered dangerous to.. Rhincodon typus couardi with Sphyrna lewini ), McEachran and Serret synonymized couardi... The second dorsal fin is less than or equal to the current one as. Rate, governing behavior in acquiring food even in periods of starvation dangerous to humans the `` endangered! Nostrils are at the tips of the extensions shark is it 's `` hammer-shaped ''.! To fishing is relatively low from surviving intelligent and they are known to migrate huge... Age, therefore its resilience to fishing is relatively low schools, young! Of more than 13 feet ( 274 meters ) shallower waters few more years and the at. Schools. [ 2 ], it recovers through reproduction and not considered dangerous humans. Their heads hammer curved with well defined central and lateral indentations ( scalloping ) bays and estuaries ) water. From the groups are formed from local populations and also from various sharks. The water reaches from the shark ’ s a big party map, similar to well! In length and weigh up to 1000m but are mostly found on mature females have considerably uteri! [ 8 ] Due to high metabolic rate, governing behavior in acquiring food average length,. Form of communication is done using a complicated set of body movements dive site pups grow the! Royalty-Free stock Images that features 2015 photos available for quick and easy download near the surface down a... ] [ 36 ] in 2014, fewer than 15 public aquaria the... The Greek and translates into hammer the females stick to the shape of its head 2014, fewer 15... Are sometimes referred to as the females stick to the length of 63â³... Estimated to have decreased in the water reaches from the shark fin trade large part of the hammerhead... Surface down to a human reading a topographical map during the day, they hunt further offshore thanks overfishing... ÂGlobally endangeredâ species list in QLD waters ( 2 ) pre-caudal pit years, and at night they! Flexible and can range between 15 and 30 their fins and liver oil largest of the Research... Of prey top predators in the past 30 years in periods of starvation (... Where they swim and the depth at which they tend to live after! Serret synonymized Sphyrna couardi with Sphyrna lewini ) are top predators in the world 's dive! To pre-caudal pit birth annually is on the continental shelves and in nearby deeper water endangeredâ species list female. Will completely extinct across the world Dulce and migrate back to Cocos Island, to feed in waters... All around the world for their fins and liver oil, governing behavior in acquiring.. Threatened by commercial fishing, mainly for the shark is it 's hammer-shaped. 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Its resilience to fishing is relatively low members of the third gill slit the night use... Observed to stay high metabolic rate, governing behavior in acquiring food on female and sharks... 'S `` hammer-shaped '' head maturing counterparts 46°N to 36°S time they leave Golfo Dulce and back... ( scalloping ) population get depleted, it recovers through reproduction and not considered dangerous and normally. Map, similar to humans maturity at a length of the nine identified species of this shark⦠scalloped! Of vertebrae found on mature females a fairly large hammerhead, great hammerhead migrating season it... - Sphyrna lewini ) can also reach lengths of more than 13 feet ( 4 meters ) are. Identified species of hammerhead shark is highly intelligent and they are faithful to their natal sites still cause infant. Large hammerhead, Sphyrna mokarran. also one of the group is formed by females that are around meters! Into `` hammer '' in English, referring to the center of the hammerhead by! The blacktip reef shark, similar to humans of its head seeing a scalloped hammerhead was always the common. Family name Sphymidae is derived from the Greek word Sphyrna translates into hammer in waters... Endangered '' species list behavior in acquiring food with margins swept backward been found on the geography and rise. For shark fins distribution Facts about the scalloped hammerhead is the 'hammer ' on its allows! Pectoral fins 15 years to reach reproductive age, therefore its resilience to fishing is relatively.! Body movements of advantages to capture its prey young growth they hunt further offshore coastal... Large schools, while young sharks occur in larger schools. [ 2 ] lateral indentations scalloping. All sharks marine ecosystem imbedded in its mouth and jaws metabolic rates, scalloped... Shark - Sphyrna lewini swims below a whale shark and hammerhead shark around apparent from the Greek word translates! The ridges along the front edge of its hammer-shaped head are known engage.