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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.剧情讲述的是一个杂草女孩为了报复父亲抛弃母亲和别人结婚，她刻意接近同父异母妹妹的未婚夫后发生的爱情故事！Tu Mun Street客气。---TBC---大龙小龙是一对亲兄弟，一起经营者家族企业————卖酒，奈何酒总是卖不出去，日子过得紧巴巴。人穷志不短，深受香港电影影响的大龙想要成为赌圣发哥，而小龙想要成为像李小龙一样的一代功夫大侠，并追到自己喜欢的女孩———甄漂亮。大龙想了个歪主意赚钱，却被暗算，钱被骗光。大龙找到王科希望能帮助自己，但没想到却把自己家的房子也给搭了进去。大龙小龙失败后回了家，买了酒的饭店老板来找麻烦，仇人王科也追来要债，母子三人被勒令三日之内搬出家门，三人万念俱灰。大龙出去学习后回到了家，自称学到一身赌术的他和小龙制造了一个陷阱，等着罪恶至极的王科往下跳……寻找心中的彩虹，憧憬彩虹另一边的美丽世界。