牛鲨体型较小，身体较其它鲨鱼相对宽阔，躯干粗大，整个身体呈纺锤型。体背呈侧暗灰色，腹侧为灰白色。雄性牛鲨可长到2.1米长，90公斤重。雌性则更大，达3.5米长，230公斤重。 牛鲨的头宽扁，尾基上下方各长有一个凹洼。牛鲨眼睛很圆，瞬膜发达。前鼻瓣呈宽三角形；没有口鼻沟或触须。
“牛鲨因其极具攻击性而闻名，”兰德里说到。
"The bull shark is known for its aggressiveness," Landry says.
牛鲨以性情反复而且常有攻击行为而闻名，因此它们在居住区的出没让人担忧。
Bull sharks are known for their unpredictable and often aggressive behavior, so their presence in populated areas is a concern.
在澳大利亚伊普斯维奇郊区古纳，有人看到牛鲨游过麦当劳、肉店以及其他地方。
Bull sharks have been observed swimming past a McDonald's restaurant, past a butcher's shop, and around other places in Goodna, a suburb of the city of Ipswich, Australia.
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