What is Bull shark?
{{Taxobox | name = Bull shark | image =Carcharhinus_perezi_at_Roatan2.jpg | image_width = 250px | status = NT | status_system = IUCN3.1 | regnum = [[Animal]]ia | classis = [[Chondrichthyes]] | subclassis = [[Elasmobranchii]] | ordo = [[Carcharhiniformes]] | familia = [[Carcharhinidae]] | genus = ''[[Carcharhinus]]'' | binomial = ''Carcharhinus leucas'' | range_map = Cypron-Range_Carcharhinus_leucas.svg | range_map_caption = Range of the Bull shark}} The '''bull shark''' (''Carcharhinus leucas''), or '''Zambezi shark''', is a [[species]] of [[shark]] of the [[genus]] ''[[Carcharhinus]]''. The shark grows to a maximum length of 11.5 feet (3.5 metres), but is usually 7.3-7.8 feet (2.2-2.3 metres) long. It is found in [[tropical]] and [[subtropical]] coastal waters worldwide, as well as [[river]] systems and freshwater [[lake]]s. This species is listed as [[Near Threatened]] by the [[International Union for the Conservation of Nature|IUCN]] and is considered to be the third most dangerous shark in the world. == Description== [[Image:Bull shark.png|thumb|left|250px| A drawing of a Bull shark]] Bull sharks have a very sturdy body, and have a blunt, rounded snout, giving the Bull shark its name. The first dorsal fin is large and widely triangular with a pointed tip. The second dorsal fin is noticeably smaller. The [[pectoral fin]]s are also large, and have sharp tips. Bull sharks have quite small eyes as compared to other [[Carcharhinidae|carcharhinid]] [[shark]]s, which might mean that vision is not a very important hunting tool for this [[species]] which is usually found in muddy waters. Bull sharks are usually pale to dark grey above, and their undersides are white. In young Bull sharks, the [[fin]]s have black tips which turn to a dusky colour as they grow. The [[teeth]] of the upper [[jaw]] are wide, triangular, and heavily jagged. The teeth of the lower jaw have a wide base, and are narrow, triangular, and are finely jagged. The front teeth are raised and are nearly symmetrical, while the back teeth are more s