北海有暴雨洪水，有浩瀚潮汐，有高耸的沙丘和崎岖的海岸线，还是鸟类迁徙最重要的交通枢纽。一年四季中，这里的海滩不仅吸引着游客，还吸引了无数的海豹前来。然而，北海如此变幻莫测，人们对其知之甚少，她复杂纷繁的海底世界始终难以接近。...

　　Isolated from the rest of the world since the time of the dinosaurs, New Zealand’s magnificent wildlife has been left to its own devices for 80 million years, with surprising consequences.　　Narrated...