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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.《康熙微服私访记》第三部分为三个单元，第一单元《锦袍记》、第二单元《食盒记》、第三单元《铃铛记》，每个单元独立成章，该剧将沿袭一、二部借古喻今、欢乐与忧伤结合的风格。不同的是《康》剧第三部节奏比前两部更加紧凑，人物侧重方面也有所变化，宜妃和三德子将作为主要人物演绎康熙私访期间发生的故事。乾隆年间，简述了一代神医的传奇故事。以戏说的表现手法，撷取了“医痴”叶天士出手治伤、治匪于（膏）肓、奇药救（皇）上、巧做红娘几个故事，再现了清代名医叶天士精湛的医术、精深的医理，和威武不屈富贵不移的高尚医德、医道。周菡就傻了：要打仗了？那怎么办？林聪纳闷地问道：什么怎么办，打仗有你什么事？周菡道：我不放心呢。马帮四兄弟老大秦天樵下山，遇见了被政府军追捕的神秘女子星谕，一见钟情，并为其解围娶其为妻，秦家的三个弟弟耕、渔、牧虽已成年，却难脱幼气，举止粗野。星谕自觉有义务教育诸弟，担起长嫂为母之责，由此引出一段段欢喜佳话　　一个伤心的城市，到底隐藏了多少秘密在其中呢？因此，板栗对家中的玉米也是疑惑万分，他不信一个孩子能伪装得那么好，逃得过自己兄妹和爹娘的眼睛。