《BBC地平线：我们该关了动物园吗？》是由导演：特里斯坦·奎因，主演：利兹·博宁等共同参演的一部值得大家观看的电影，还在等什么？赶紧点击上方地址观看吧！

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...