标题: 看北美时的总结_环境类 [打印本页] 作者: KnightBM 时间: 2011-12-2 18:30 标题: 看北美时的总结_环境类 保护濒危动物 morally obligatedto help prevent extinction self-preservation自卫本能 Theanimal kingdom is an intricate matrix of interdependent relationships,in which each species depends on many others for its survival. Severing certainrelationships, such as that between a predator and its natural prey, can setinto motion a series of extinctions that ultimately might endanger our ownsurvival as a species Maximalprofits Many suchextinctions are due to natural forces, while others are due to anthropogenic factors. Inany event, it is far beyond our ability to save them all. Yet itis for this very reason I agree that economic self-interest should take precedenceover vague notions about moral duty when itcomes to saving endangered species.