I know this sounds selfish, but I sometimes wonder if it would be possible to genetically engineer a pig to stay a cute young piglet for it's entire life, rather than turning into a large, hungry adult pig. In this way, pigs could be companion animals, rather than food animals, and I haven't thought through all the angles, but if I was a pig, it seems that would sound be more appealing for sure. (Compare below images:

http://beavercreekfarm.co/wp-content/uploads/2015/01/Charlot...

http://vignette2.wikia.nocookie.net/disney/images/b/bb/Free_... )