简介：Liz Bonnin presents a controversial and provocative episode of Horizon, investigating how new scientific research is raising hard questions about zoos - the film explores how and why zoos keep animals, and whether they need to change to keep up with modern science or ultimately be consigned to history. 　　Should zoos cull their animals to manage populations? Liz travels to Copenha...

简介：　　主持人吉米·多尔蒂走进英国自然历史博物馆的幕后，与博物馆工作人员进行近距离交流，探索该馆浩瀚藏品的秘密。　　博物馆幕后是如何运作的？为何要保存7000万余件标本？馆中科学家们的研究工作，与当今世界有何关联？他们为保护生物多样性、防止热带传染病，又做出了何种贡献？