One person, one dog to guard the plateau! They lived in the rain forest for 6 years!
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The Organic Gold Hunters of the Himalayas | Free Documentary
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Rare poisonous snakes in rainforest swamps! Like to prey for birds
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在草原上散养的鸡晚上不肯“回家”怎么办？创新养殖模式化解草原沙化危机！20220211 |《创新进行时》CCTV科教
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云南深山大片荒村，几百年无人敢住，只因老祖宗留下一段祖训 “只能种地不能住人”【绿野中国】
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Wonders of Vietnam | Where Time Flows Differently | Most Amazing Places in Vietnam | 4K
1:36:35
舟山渔民远赴3500公里外的南太平洋"搏命"捕鱼！一去就是两年！他们能否满载而归？《大海追鱼》精编版【CCTV纪录】
18:10
《探险中国》——探秘“巨人洞”（完整篇）
27:46