英国博物学家戴维·阿滕伯勒曾问过:“假如我们的孙辈永远见不到大象,而只能在图画书里看到它们,我们会高兴么?”事实上,全球每天都会失去十几个物种,专家称之为“第六次物种大灭绝”。到20世纪中叶,多达30%至50%的物种将走向灭亡。世界自然保护监测中心的海洋生态学家德 David Attenborough, a British naturalist, once asked: “Would we be happy if our grandchildren could never see an elephant and could only see them in the picture book?” In fact, Every day, more than a dozen species are lost in the world. Experts call it “the sixth species extinction.” By the middle of the twentieth century, as many as 30% to 50% of species will perish. Marine Ecologists at the World Conservation Monitoring Center