From Dead Cow Walking:
Here are some more facts associated with one’s choice to eat dead cows. Cows are sentient mammals who are very intelligent. They worry over what they don’t understand and have been shown to experience “eureka” moments when they solve a puzzle such as how to open a particularly difficult gate. Cows communicate by staring and it’s likely we don’t understand their very subtle ways of communicating. They also form close and enduring relationships with family members and friends and don’t like to have their families and social networks disrupted, nor do they like to be subjected to the reprehensible conditions to which they are exposed during their transport to the factory farm (or CAFOs, concentrated animal feeding operations) and their short stay at these filthy and inhumane facilities. They also suffer not only their pains but the pains of other cows who are their short-term roommates on the way to one’s plate. Because cows are sentient one should really ask, “Who’s for dinner?” not “What’s for dinner?” if an animal is involved. Who we eat is a serious moral question.