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Broadnose Sevengill Shark Video Stock Footage
The length at birth is 40–45 cm (15.5–17.5 in) while the mature male length is 1.5 m (4.9 ft) and mature female length is around 2.2 m (7.2 ft). The maximum length found is 3 metres (9.8 ft). The shark is large and active and has a large head but small eyes and snout. The shark has one dorsal fin at the back of the body that spans from the insertion to the tops of the pelvic fins. The broadnose sevengill shark is also known as sevengill shark or simply sevengill and was formerly known as cow shark and mud shark it is called sevengill due to its seven gill slits. Because of this, it was listed along with the sharpnose sevengill shark by Guinness World Records as having the most gill slits. It is similar to the sharpnose sevengill shark but the latter has a pointed snout and lacks spots on its dorsal surface. The sevengill species are also related to ancient sharks as fossils from the Jurassic Period (200 to 145 million years ago) also had seven gills.
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