[00:00.00]Thousands of species have humans to thank for [00:02.88]bringing them to islands throughout the Pacific. [00:05.82]But there's one animal that has been a valued travelling companion [00:09.36]for as long as people have sailed this ocean. [00:11.95]Wherever people went, [00:13.23]pigs went too. [00:15.29]In Vanuatu, [00:16.45]1,200 miles north of New Zealand, [00:19.48]the people of Tanna Island have gathered for a festival. [00:23.51]Like an expensive car in Western culture, [00:26.39]here pigs are a symbol of wealth and status. [00:29.88]The Toka festival celebrates the end of warfare between rival clans, [00:34.44]and pigs are at the centre of it. [00:36.92]To attend, each village must bring some to the party, [00:39.99]that's a lot of pigs. [00:41.63]Some will be butchered for a feast, [00:43.54]others given away. [00:44.89]But to take one of these pigs home, [00:46.66]a family must agree to one day repay the debt [00:50.11]and it's these pig debts that help strengthen the bonds [00:52.69]between the different villages.