简介：针对世界范围内的公共安全威胁，多个领域的科研人员正不断加大力度开发新科技。本系列纪录片将走进前沿科学实验室，让观众看到曾经的科幻元素如何成为现实。第1集：生化防御（Science Vs. Bioterrorism / Les menaces invisibles）核弹、化学制剂和生物制剂的使用和发展
简介：婉转，清丽，高亢，鸟儿在枝头欢唱。世界自然纪录片之父爱登堡老爵爷讲述鸟类鸣叫对于种群的意义。
David Attenborough chooses seven of the most remarkable animal songs found in nature and explores the
简介：Follows a group of male hunters who regularly lure women to their island with the chance to win 100K in a hunt, only to discover that they are the hun
