"I think the larger issue is the psychological torment; animals isolated, kept away from others who can give them companionship, fearing what's going to happen next, and animals living in this constant state of confinement."

VOA: standard.2010.02.16

Then we got into more deliberate hunting of animals, larger species were hunted and then you started to see humans eating things like mammoth, deer, horse, bison, and reindeer.

我们开始有意识地狩猎捕食,我们开始捕杀巨大的物种,于是你能发现人类食用大型动物,比如猛犸象,鹿,马,野牛及驯鹿

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选