Chinese pigs rule

Pigs that lived in China 10,000 years ago are the direct ancestors of modern-day Chinese pigs. Scientists studied genes of 1,500 modern pigs and 18 ancient pigs across Europe and East Asia. Although ancient pigs were imported to Europe, they were replaced by pigs descended from wild boars. This did not happen in China despite the presence of genetically distinct wild boar populations. The domesticated pigs in East Asia then migrated south and east with people to Hawaii, Tahiti and Fiji.

Source: Down to Earth, June 2010