Like a puma or a tiger. Feral is also a synonym for the term wild, but all feral really means is 'stray'. Like an animal that can take care of itself in the wild. A house pet would not be considered...
It depends on the specific feral animal.
However, they fall into basically three categories: (1) those brought to Australia to make it more like England; (2) those brought for biocontrol reasons and...
Pigs are not feral but you have to ride your pigs at least once a week or they will go feral from the lack of attention. It is also a good idea to feed your feces to your pigs because if you forget...