Research has revealed pigs to be among the most cognitively sophisticated of all domesticated animals — findings that directly challenge the conditions in which the vast majority of pigs are kept.
The cognitive research on pigs represents one of the most striking cases of scientific evidence that has failed to translate into proportionate welfare improvement. We now know that pigs have memory systems, emotional awareness, social sophistication, and problem-solving abilities that would, in any other context, generate strong moral concern about their housing and treatment. A creature capable of self-recognition and episodic memory, housed alone in a gestation crate too narrow to turn around, is experiencing a form of deprivation whose welfare significance is hard to overstate. The challenge for welfare advocacy is bridging the gap between what the cognitive science reveals and what the public understands — most people who eat pork have never encountered the evidence about pig intelligence.