Biologists from Macquarie University in Sydney insist that grey nurse sharks, while terrifyingly toothy in appearance, are mild creatures which will bite humans only if provoked.

• 不过，科学家们认为，尽管沙锥齿鲨锋牙利齿的外表很吓人，但它们实际上是性情温和的动物，只有被激怒时才会咬人。