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夏天到了,人们每天都要共同对付一个渺小而又强大的敌人:蚊子。不久前,英国牛津大学遗传学研究所传出喜讯:科学家发明了一种生物农药——一种带有自毁灭基因的蚊子,将它们释放到野外,与野生蚊子交配后,孵化出的下一代,在幼虫阶段就会死亡。在试验区域,蚊子的数量在6个月内减少了80%。大家信心满满地说,科学的威力能够消灭整个蚊子物种。但试验随后陷入生态伦理困境,生态学家认为,如果在全世界推广这种蚊子,那将是全球生态系统的灾难。一个最明显的改变是,许多昆虫、鱼类、蛙类
When the summer comes, people work together daily to deal with a small but powerful enemy: mosquitoes. Not long ago, the Institute of Genetics at the University of Oxford in the United Kingdom came with good news: scientists invented a biological pesticide - a mosquito with a self-destructor gene that releases it into the wild and hatches the next generation after mating with wild mosquitoes , Will die during the larval stage. In the experimental area, the number of mosquitoes decreased by 80% within 6 months. We all said with confidence that the power of science can destroy the entire mosquito species. But then the experiment fell into ecological ethical dilemmas, and ecologists think it would be a catastrophe of the global ecosystem if the mosquitoes were spread around the world. One of the most obvious changes is that many insects, fish, frogs