translation.en: Now, there are ecological reasons for eating lower on the food chain too, whether it’s the deforestation of the Amazon, or making more protein available, to the four billion people who live on a dollar a day -- not to mention whatever ethical concerns people have.
translation.zh: 现在，从生态学的角度看，我们也有理由以食物链低端的生物作为食物， 比如为了防止亚马逊森林被过度采伐，或为了生产更多的蛋白质 给世界上40亿每天只用一美元的人们， 还有，你知道，人们有各种各样道德上的考虑。