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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.Object sender=10;双方也是互有伤亡，本着和平和仁慈，战争不适宜再继续下去5. After setbacks, I didn't devote myself very much to the middle and late stages. I held the mentality of loving death and running. I stopped eating. Although I often encouraged myself, I was unable to recover from the situation in the later stages. I had to wait for 2014. It was no longer cost-effective to invest again in the later stages. When this place is not suitable, we must make a decisive decision, either continue to invest to improve the foundation, or change to a better ready-made site and don't invest blindly. Talk about why I gave up this place, want to continue to raise, want to solve the water source, drill a tractor well to 20,000, pond silt deepest place 80 centimeters, to clean up is too difficult, at least the foundation has to invest 40,000 yuan, a small area of about 15 mu, is not worth the big investment, have to give up.　　该剧以徐浩宁和傣家女孩玉波的爱情为主线，国外留学归来的浩宁，只身来到西双版纳创业过程中，最终为了保护西双版纳的原生态甘愿放弃个人利益付出巨额赔偿，另寻发展之路，并和玉波相爱，投身于傣寨和热带雨林、珍稀动物保护的故事，表现了西双版纳少数民族对家乡山水的热爱、对理想生活的追求、对保护自然的生态观念、对民族和谐共同发展的美好愿望。　　本作将聚焦于反毒战争的起源 – 墨西哥的瓜达拉哈拉贩毒集团，时间也将移前至80年代，讲述冷静﹑大胆﹑头脑清晰﹑忠于 亲友的Felix Gallardo（Diego Luna饰）如何把散乱的贩毒者统一起来，成为被称为「Godfather」的大毒枭。尹旭大惊，身子往下一蹲，左肩上登时一阵疼痛，血迹喷洒而出。