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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.他什么都能教妹妹，就是不好教她杀人。该剧根据古龙等人原着编剧，讲述来自扶桑的中原少女西门无恨(杨钧钧 饰），为追寻自己的身世之谜，假扮当年武林高手楚留香盗宝，终于引了两年前绝迹江湖的楚留香（刘德凯 饰），证实无恨确为楚的亲生女儿；二十年前，楚留香给江南金家拜寿，巧遇少女张洁洁，两人由恨生爱，私定终生。原来洁洁系麻女圣教的圣女，为了不愿下嫁魔火宫的少宫主，才有母亲安排，与楚结识、相爱。魔火宫的少宫主为夺回张洁洁和麻衣圣教，布下罗网，加害楚、张二人。张洁洁生下女儿无恨后自尽，西门不弱（林威饰）带着婴儿无恨逃到扶桑，投靠无恨的外公。无恨长大后练成麻衣圣教的护教神功乾坤挪移打法。宫本是个职场菜鸟，在恋爱和工作上都十分笨拙，一直烦恼著自己在社会上生存的意义。直到某日，和靖子一见钟情后，他的人生终于露出一线曙光，稳定的日子过没多久，却突然发生了一件大事，彻底的改变了他们，让靖子和宫本的关系降到了冰点，宫本要如何做才能巩固这份得来不易的爱情呢？为自己找好了借口，不敢再走神。在被选召的孩子们首次接触数码世界的6年后。2005年的一天，东京港区海面上的波浪在朝阳下摇曳…17岁的高中生八神太一，一如往常用手按停眼前的闹钟，踢开混乱的被铺，低声滴咕下伸展四肢。拉开了窗帘，光线照到桌上一幅“那一天”的集体照上。随后他在“一路顺风，哥哥”的送别声下，骑上自行车出门，奔向那片初夏的青空…现在，冒险再度进化…