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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.何永强。112. X.X.202　　在已发财的同学阿曾的帮助下，陈水明与周蜜还有范小米也在海口炒地皮，挣了些钱。可是范小米与陈水明只有压抑二个人内心里的感情。一九九三年，海南地产低潮，阿曾卷钱跑了，陈水明被抓起来。周蜜栽脏范小米，救陈水明出牢一起返回北京。周蜜怀的第一个孩子同时流产，而范小米则被判入狱。当蚁群在一个小岛上展现出惊人的行为时，一个科学考察小队奉命前去控制。但当他们到达是，却发现这个蚁群的力量已经超越了这个世界的控制范围。蚂蚁们疯狂虐杀的背后！又有人的控制着成为了巨大的魔物，还有外星生物之类的……李淑萍（归亚蕾饰）当年不顾父母反对，与心上人私奔，在辞去优厚的工作后，未婚生子，但女儿却被父亲偷偷抱走，致使淑萍遭骨肉亲情分离痛苦。后来淑萍嫁沈光远（曹健饰）为妻，多年来，始终守着这个秘密，并仍不断的寻找女儿下落，而因思女心切之情，造成光远的两个女儿，之芳、之玲（李威仪、俞小凡饰）心中阴影，便让光远夹在女儿与妻子中间左右为难。范旭川（焦恩俊饰）自小在孤儿院长大，与姐姐美珠(曾亚君饰)相依为命，与儿时玩伴林彩娟(张庭饰)感情深厚。旭川偶遇之玲，即被之玲的温柔善良所深深吸引，而展开追求行动，但此举动却为之玲同事石康文（林炜饰）看在眼理，心生醋意。之玲眼见之芳的婚姻不幸福，对婚姻产生恐惧，而拒绝旭川，康文二人感情，不料却又遭彩娟和康文二人联手打击，而再次陷入痛苦深渊之中……