| [00:00.10] |
Bull sperm whales also undertake epic voyages across the Pacific. |
| [00:05.94] |
To reach such a gargantuan size, |
| [00:08.42] |
young bulls must leave their family groups in the tropics |
| [00:11.69] |
and go in search of richer pickings. |
| [00:14.51] |
And so they head for the temperate seas of the higher latitudes. |
| [00:19.48] |
Crossing thousands of miles of ocean, |
| [00:22.82] |
many voyage to one of the greatest feeding grounds |
| [00:26.36] |
in the South Pacific - New Zealand. |
| [00:30.28] |
Its two main islands span almost 1,000 miles, |
| [00:34.27] |
and journeying south, |
| [00:35.57] |
its coastal waters become progressively cooler and weather-beaten. |
| [00:48.11] |
At 40 degrees latitude, |
| [00:49.48] |
severe westerly winds known as the Roaring Forties blast the coastline. |
| [00:55.62] |
Yet it is the foul weather |
| [00:57.14] |
that produces the abundance of life found in these cold waters. |
| [01:00.84] |
Storm-churning and colliding currents unlock the deep's great reserve of nutrients |
| [01:00.84] |
and send them to the surface. |
| [01:00.84] |
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