BBC地平线：我们该关了

   最大资源网 提供本片资源  Liz Bonnin resents a controversial and rovocative eisode of Horizon, investigating how new scientific research is raising hard questions about zoos - the film exlores how and why zoos kee animals, and whether they need to change to kee u with modern science or ultimately be consigned to history.\r\n　　Should zoos cull their animals to manage oulations? Liz travels to Coenha...