Why do we need to adopt pigs in twos?

Pigs are highly social and intelligent herd animals, while they will enjoy your company, what they need most is another pig to communicate and have a meaningful relationship with. One of the reasons why pig owners give up their pigs is because their single-pig family member has become depressed and aggressive. There are exceptions, of course, however the majority of pigs don’t. We have learned that a human can never replace a fellow pig friend.