Hammerhead sharks; bonnet head sharks.

锤头鲨；窄头双髻鲨。

youdao

In the past 25 years, certain hammerhead sharks have declined 83% in the northwest Atlantic and up to 70% in the eastern Pacific and southwest Indian Ocean.

在过去的25年里，大西洋西北部的锤头鲨减少了83%，而太平洋东部和印度洋西南部则减少了70%。

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I also learned that some of the biggest sharks are not carnivores, so they don't attack like the really vivious ones, like Great White sharks or Hammerhead sharks.

我也知道了最大型的鳌鱼中，有些并非食肉性动物，不会像穷凶恶极的大白笙或双髻鳌一样具有攻击性。

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Hammerhead sharks have nostrils that are more widely spaced than those of sharks with pointed noses.

VOA: special.2010.08.03

Ms.Gardiner believes this ability may have helped the development of hammerhead sharks over the ages.

VOA: special.2010.08.03

For example,you can see hundreds of female hammerhead sharks gathering to find mates.

VOA: special.2009.04.03

On one of the submersible's first test voyages, Hawkes' team encountered a group of hammerhead sharks.

CNN: Winged luxury submarines 'fly' underwater

"This study confirmed that hammerhead sharks have anterior binocular vision, " says Dr McComb.

BBC: Earth News - Hammerhead shark mystery solved

Hammerhead sharks are also on the list and some people claim to have seen Great White sharks although it has never been proven.

BBC: Richard Peirce says many sharks are facing extinction