A recent review of existing research has resulted in a compilation of the high-level cognitive tasks that pigs have been able to accomplish including using a mirror and showing empathy.
The photo of a captured pig appearing to be smiling in the back of a police patrol car in Shelby Township, Michigan, has gone viral--possibly because it had just gone to the bathroom, leaving the seat a mess.
The nose of a certain pig in Jilin, China looks far different from what we typically see. The tiny piglet was born without a mouth, but it did however have a snout.