Oh interesting, I had assumed some level of gradual genetic changes in domestication were responsible. So you are suggesting it's mostly phenotypical changes that could even be somewhat reversed in an individual... I wonder how far a new born would revert to what is being depicted in the illustrations.
I can only speak from personal experience (what I've seen), but I googled and found this:
> "Any pig that gets out can revert back in a matter of months to a state where it can exist in the wild," said Brown. "It will get hairy, grow tusks and get aggressive. They're so good at adapting, and with their scavenging nature, they can get by pretty much anywhere."
