The hammerhead sharks are a group of sharks that form the family Sphyrnidae, named for the unusual and distinctive form of their heads, which are flattened and laterally extended into a cephalofoil (a T-shape or "hammer"). hammerhead shark, (family Sphyrnidae), any of 10 shark species belonging to the genera Sphyrna (9 species) and Eusphyrna (1 species), which are characterized by a flattened hammer- or shovel-shaped head, or cephalofoil. Hammerhead sharks, or sphyrnids, are perhaps the most distinctive and unique of all sharks.
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13 to 20 feet Weight: 500 to 1,000 pounds Size relative to a 6-ft man: Hammerhead sharks are consummate predators that use their oddly shaped heads to improve their ability to find prey. Unique. Hammerhead shark evolution.. Because most of the skeleton of sharks is made from soft cartilage, it takes special conditions for this to preserve. The teeth, however, are made from a much tougher material known as dentin, which is harder and denser even than bone. While this enables a powerful bite, it also increases the chance that the. This shark's unusual name comes from the unusual shape of its head, an amazing piece of anatomy built to maximize the fish's ability to find its favorite meal: stingrays. A hammerhead shark uses its wide head to trap stingrays by pinning them to the seafloor. The shark's eye placement, on each end of its very wide head, allows it to scan more area more quickly than other sharks can. The first 1000 people to use the link will get a free trial of Skillshare Premium Membership: https://skl.sh/realscience04211 Watch this video ad-free on Neb.
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Why do hammerhead sharks have hammer-shaped heads? A great hammerhead shark's two eyes can be 3 feet apart on opposite sides of its skull. Why do hammerhead sharks have hammer-shaped heads?. A shark's lightweight skeleton allows it to put more energy into swimming and use dynamic lift to maintain its place in the water. Senses.. A fisherman holds a freshly cut dorsal fin from a scalloped hammerhead shark (Sphyrna lewini). Every year, humans kill an estimated 100 million sharks. Removing sharks in large numbers can have ripple. Great Hammerhead. Perhaps the most distinctive marine animal of all—the Great Hammerhead has a unique hammer-shaped head that gives it large visual range. Like other sharks, the hammerhead has many teeth. More so than many think—about 17 rows of teeth on the upper and lower jaws. The shark feeds on fish and other marine prey such as octopi. Great Hammerhead sharks are highly circumtropical and found throughout the Southwest Indian Ocean, along the Gulf of Mexico, the Florida coast and nearby Northwest Atlantic, and within the South China sea.
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Spotted a Great Hammerhead Shark cartilaginous / skeleton at the KZN Sharks board in Umhlanga, South Africa The scalloped hammerhead (Sphyrna lewini) is a species of hammerhead shark in the family Sphyrnidae.It was originally known as Zygaena lewini.The Greek word sphyrna translates into "hammer" in English, referring to the shape of this shark's head, which is its most distinguishing characteristic. The shark's eyes and nostrils are at the tips of the extensions.
With their sandpaper skin, cartilage skeleton, electroreceptive sensors, and rows of dangerous teeth, sharks fascinate many people. However, even within this distinctive group the hammerhead sharks that make up the Sphyrnidae family have attracted a special attention due to the unusual shapes of their namesake heads, called cephalofoils. Several evolutionary benefits of the cephalofoil have. The great hammerhead shark is the largest of all nine hammerhead species, reaching an average length of 13.1 feet (4 m) and weight of 500 pounds (230 kg). The longest great hammerhead shark ever recorded was 20 feet (6.1 m) long, and the heaviest great hammerhead shark ever recorded was 991 pounds (450 kg)..
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How did the Hammerhead Shark Evolve? | BBC Earth BBC Earth 12.4M subscribers Subscribe 54K views 12 years ago An insight into the evolution of the hammer that defines Hammerhead sharks. Great. Appearance: The most recognizable shark feature may be its fin. Sharks are a group of elasmobranch fish, which are characterized by a cartilaginous skeleton, five to seven gill slits on the sides.
