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Mackerel sharks, also called white sharks, are large, fast-swimming sharks, found in oceans worldwide. They include the great white, the mako, porbeagle shark, and salmon shark. Mackerel sharks have pointed snouts, spindle-shaped bodies, and gigantic gill openings. The first dorsal fin is large, high, stiff and angular or somewhat rounded.
Great white sharks, shortfin mako, longfin mako, salmon shark, and porbeagle are endothermic, which helps them move quickly in water. [21] They are able to regulate their body temperature depending on the temperature of the water they are in, in order to contract their muscles and swim faster. [ 21 ]
A great white shark was captured near Kangaroo Island in Australia on 1 April 1987. This shark was estimated to be more than 6.9 m (23 ft) long by Peter Resiley, [67] [73] and has been designated as KANGA. [72] Another great white shark was caught in Malta by Alfredo Cutajar on 16 April 1987. This shark was also estimated to be around 7.13 m ...
By rubbing its nose, Neil overstimulates. With his hand close to razor sharp teeth, shark expert Neil Harvey attempts tonic immobility in a large reef shark.
The Megalodon was a prehistoric shark, much like a great white ... but 60-feet long. Researchers don't actually believe it was a Megalodon, but they do think it was a giant shark: a great white ...
A massive great white shark, known to be somewhat of an "artist," paid a rare summer visit off the Palm Beach County coast − just one day after Discovery Channel's 'Shark Week' ended. The 13 ...
Deep Blue is a female great white shark that is estimated to be 6.1 m (20 ft) long or larger and is now sixty years old. She is believed to be one of the largest ever recorded in history. The shark was first spotted in Mexico by researcher Mauricio Hoyos Padilla. Deep Blue was featured on the Discovery Channel's Shark Week.
A 2004 study by shark experts Vittorio Gabriotti and Alessandro De Maddalena observed that the modern great white shark reaching lengths of greater than 4 meters (13 ft) commonly ram its prey with massive velocity and strength to inflict single fatal blows, sometimes so powerful that prey would be propelled out of the water by the impact's force.