<Li> <P> Electron micrograph of an upper tooth </P> </Li> <P> Electron micrograph of an upper tooth </P> <P> The bull shark is commonly found worldwide in coastal areas of warm oceans, in rivers and lakes, and occasionally salt and freshwater streams if they are deep enough . It is found to a depth of 150 m (490 ft), but does not usually swim deeper than 30 m (98 ft). In the Atlantic, it is found from Massachusetts to southern Brazil, and from Morocco to Angola . In the Indian Ocean, it is found from South Africa to Kenya, India, Vietnam, Philippines to Australia . </P> <P> Populations of bull sharks are also found in several major rivers, with more than 500 bull sharks thought to be living in the Brisbane River . One was reportedly seen swimming the flooded streets of Brisbane, Queensland, Australia, during the 2010 - 11 Queensland floods . Several were sighted in one of the main streets of Goodna, Queensland, shortly after the peak of the January 2011, floods . A large bull shark was caught in the canals of Scarborough, just north of Brisbane within Moreton Bay . Still greater numbers are in the canals of the Gold Coast, Queensland . In the Pacific Ocean, it can be found from Baja California to Ecuador . The bull shark has traveled 4,000 km (2,500 mi) up the Amazon River to Iquitos in Peru and north Bolivia . It also lives in freshwater Lake Nicaragua, in the Ganges and Brahmaputra Rivers of West Bengal, and Assam in Eastern India and adjoining Bangladesh . It can live in water with a high salt content as in St. Lucia Estuary in South Africa . Bull sharks have been recorded in the Tigris River since at least 1924 as far upriver as Baghdad . The bull shark is generally prolific in the warm, coastal waters and estuarine systems of the Mozambique Channel and southward, including Kwa - Zulu Natal and Mozambique . The species has a distinct preference for warm currents . </P>

Where are bull sharks found in the us
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