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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 Copenhagen Zoo, who killed a giraffe and fed it to the lions, to witness their culling process first hand. They think it is a natural part of zoo keeping that is often swept under the carpet. Should some animals never be kept in captivity? In a world exclusive, Liz visits SeaWorld in Florida and asks if captivity drove one of their orcas to kill his trainer.But could zoos be the answer to conserving endangered species? Liz examines their record, from helping breed pandas for the wild to efforts to save the rhinos. She meets one of the last surviving northern white rhinos and discovers the future of this species now lies in a multimillion-dollar programme to engineer them from stem cells. Veteran conservation scientist Dr Sarah Bexell tells Liz the science of captive breeding is giving humanity false hope.这情形使得他们格外兴奋：这里防守严密，这证明这里不是有重要的人，就是有重要的东西，这才不枉他们跑一趟。武当第三代第一人、未来武当的掌门人宋青书，和不能学武、废物一个的张无忌，这之间太容易选择了。(2) Nothing in this section shall relieve the overtaking ship of its obligations under Article 13.编辑《燃烧》讲述了抗日时期，一个 神秘而性命攸关的“保护破译的密码 本”任务牵动着土匪、黑店老板娘等一 系列的小人物角色的命运，大家经历 了重重困难险境甚至牺牲了自己的生 命，最终把这个看似不可能完成的艰 巨任务完成了，每一个人都是被历史 铭记的抗日英雄。The next article: Intelligent Construction Process Management of Large Marine Engineering Projects Based on BIM Technology