[00:00.39]The South Pacific is a vast ocean wilderness. [00:04.64]Its waters are teeming with life, [00:07.18]from tropical coral reefs that attract the great variety to the cooler, [00:10.80]temperate waters that attract the great numbers. [00:14.98]So why is it that in the midst of all this richness [00:18.44]the world's largest predators [00:21.13]can struggle to survive in this endless blue? [00:25.98]Nothing brings home the challenges of surviving [00:28.95]in the South Pacific better than the epic true story [00:33.30]that inspired Moby Dick. On 23rd February 1821, [00:38.41]a lifeboat was found drifting in the eastern Pacific. [00:42.59]In it lay two American whalemen, [00:45.60]barely alive. [00:47.84]Their whale ship had been sunk by an enormous sperm whale. [00:51.41]For a staggering three months, [00:53.47]these shipwrecked mariners had sailed [00:55.25]across four and a half thousand miles [00:57.33]of what may be the loneliest region on Earth. [01:00.82]For these sailors, [01:02.21]the South Pacific had become a living hell. [01:05.95]So what is it about this ocean that makes survival here such a challenge? [01:10.33]