Pigs Domesticated 'Many Times'
From an article published on the BBC News web site on 11th March 2005:
Pigs were domesticated independently at least seven times around the globe, a new study has found.
The discovery was made by linking the DNA of tame porkers with their wild relatives, Science magazine reports.
Researchers found farmed pigs in several locations were closely related to wild boar in the same region, suggesting local domestication.
This challenges the notion that boar were tamed just twice before being transported throughout the world.