Sixgill shark (Hexanchus griseus) seen while exploring Santa Rosa Reef, south of Guam, during the first dive of the Deepwater Exploration of the Marianas expedition ...

20 年 2016 月 2.0 日，在马里亚纳深海探险队第一次潜水期间，在关岛南部的圣罗莎礁探索时发现了六鳃鲨（Hexanchus griseus ...

AN INCREDIBLE nine million year old ancestor of the great white shark has been discovered in Peru. The 23ft long beast had huge flesh-tearing teeth that ripped through its prey and could grow up ...