| [00:00.40] | Of all the oceans, |
| [00:01.56] | the Pacific is by far the largest, |
| [00:03.97] | stretching almost a third of the way round the globe. |
| [00:07.05] | It's so huge that the current in the South Pacific takes several years to complete just one cycle. |
| [00:13.46] | In an ocean this vast, many animals have to travel huge distances to survive. |
| [00:19.10] | None more so than the sperm whale, one of the greatest voyagers on the planet. |
| [00:24.65] | Every year, |
| [00:25.44] | thousands of bull sperm whales, |
| [00:27.71] | some from as far as Antarctica, |
| [00:29.85] | come to the tropics to breed. |
| [00:32.43] | After 15 years away, |
| [00:34.46] | fattening themselves up in colder climes, |
| [00:37.17] | they are now back and big enough to compete for a mate. |
| [00:40.93] | These warm, |
| [00:41.87] | equatorial waters make ideal nurseries. |
| [00:45.38] | At just a week old, |
| [00:46.93] | this white calf already weighs over a tonne. |
| [00:49.65] | For the next six years he will stay by his mother's side, |
| [00:53.20] | relaxing in these tropical waters where killer whales,his only natural predator,are rarely found. |
| [00:59.75] | But it was in these peaceful stretches of ocean that, |
| [01:03.14] | 200 years ago, whales met whalemen. |
| [01:07.22] |
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