A THIRD of the world's open water sharks - including the great white and hammerhead - face extinction, according to a major conservation survey released on Thursday.

根据星期四公布的一项较大范围的保护调查资料三分之一世界公开水域的鲨鱼包括大白鲨和外锤头鲨面临灭绝。

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The observation takes account of new research that shows hammerhead and great white sharks patrol fixed routes in the ocean, gathering at hotspots to mate or feed.

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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