Bull sharks are aggressive, common, and usually live near high-population areas like tropical shorelines. They are not bothered by brackish and freshwater, and even venture far inland via rivers and tributaries.
Because of these characteristics, many experts consider bull sharks to be the most dangerous sharks in the world. Historically, they are joined by their more famous cousins, great whites and tiger sharks, as the three species most likely to attack humans.
Average life span in the wild: 16 years
Size: 7 to 11.5 ft (2.1 to 3.4 m)
Weight: 200 to 500 lbs (90 to 230 kg)
Group name: School or shoal
Did you know? Bull sharks have been found thousands of miles up the Amazon River, and in Nicaragua have been seen leaping up river rapids, salmon-like, to reach inland Lake Nicaragua.
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