Liz Bonnin presents a controversial and provocative episode of Horizon
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
主演：安东尼·巴容,拉斐尔·奎纳德,加拉泰亚·贝露琪,多米尼克·雷蒙,伯纳德·布兰卡恩,Nathan Le Graciet,梅兰妮·马丁内兹,迈克·雷勒斯,马蒂厄·阿米利安,埃维莉娜·皮蒂,卡德尔·布阿拉加,玛莉索尔·佛塔德,蒂伯特·巴雅德,玛雅·丹内伊,汤米·李·巴克,费萨尔·德杰杜伊,安东尼·罗德里格兹,维克托·格里特萨斯,乔安·亚当,格里高利·科斯特卡德