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Deep beneath the ocean exists an incredibly hostile world - an icy world plunged in eternal darkness where the pressure is phenomenal. This world is the abyssal realm - the largest habitat on our planet. Yet some marine mammals that breathe air and nurse their young, like us, spend a large part of their days in this shadowy world. Scientists are now discovering that the depths reached by these ocean dwelling giants are far greater than they had ever imagined. Since 2012, several independent scientific studies have radically changed our thinking about the biology and physiology of marine mammals. We believed that orcas or killer whales were surface predators but scientists have recently discovered elephant seals have been recorded at depths of 2,133 metres. Documentary: Marine Mammals: Champions of the Deep Directed by: Bertrand Loyer Production: Saint Thomas Productions We fully own the rights to the use of the published content. Any illegal reproduction of this content will r
