From fangs to claws to venomous stings, they all wield deadly weapons. But which creature will be crowned the fiercest of all?

From a nuclear lake to a haunted forest, New Zealand filmmaker and journalist David Farrier ('Tickled') visits unusual -- and often macabre -- tourism spots around the world.

What happens when California dreaming becomes a nightmare? When people head to Humboldt County, California in search of quick riches in the form of marijuana. 　　Add to Watchlist

National Geographic explorers have the best jobs ever! Find out what it's like to explore black holes, climb mountains, and go deep-sea diving for a living.

The enchanting island of Sri Lanka is a world of extremes. Dry lowlands are home to the largest leopards in the world, and steamy rainforests teem with bizarre creatures found nowhere else. These six films introduce the island’s most engaging and iconic characters, all set against a backdrop of spectacular landscapes and dramatic weather.

Doctrinal press-gang and seduction tool, political instrument of the Nazi Party, paramilitary vector in the preparations for war, the Hitler Youth becomes an instrument to deliberately sacrifice an entire youth.

纵览全球，我们在世界各地都能见到各种大型动物的身影。人们认为这些巨兽所向披靡，称霸一方。 　　在本系列节目中，我们将为大家介绍这些巨兽进化出其体形特质的原因，以及它们借此维持生存的各种奇特方式。同时，我们还将回溯历史，探寻那些曾在地球上生存的史前动物，探索一个时常被忽略的问题，那就是为什么体形越大的动物有时候往往越脆弱，越容易受到各种因素影响从而走向灭绝。 　　我们将跟随生物学家派屈克 (Patrick Aryee) 前往美洲、澳大利亚、亚洲以及非洲，寻找生活在不同大洲的诸如棕熊、巨獭的巨兽，并将它们与那些淹没在历史长河中的史前巨兽作对比，了解这些神奇动物面临的种种新时代的生存挑战。 　　本节目共三集… 　　1 The Americas（美洲） 　　2 Australia and Asia（澳大利亚和亚洲） 　　3 Africa（非洲）

Camera man and survivalist les Stroud takes you on a daunting journey through the kodiak wilderness. Exploring the survival methods and social structure of the magnificent kodiak brown bear.

我们最大的州藏匿着一些美国最致命的动物杀手。每当冬季来临，食肉动物就会出现在阿拉斯加的水道和开阔地上，尽情享受无尽的阳光。开阔海域的海岸为虎鲸、大白鲨和海象等巨型猎手开辟了道路。熊在海岸线和水道沿线的残酷海洋杀戮中收获颇丰。在内陆，狼群凶猛地追逐猎物。阿拉斯加最凶残的动物在美国最后的野生疆域之一繁衍生息。

他是前美国司法部部长，他是前美国参议员，他是1968年美国大选民主党头号候选人，他还是前美国总统约翰·肯尼迪的弟弟，他就是罗伯特·肯尼迪。当所有人都认为他将继承长兄的遗志走进白宫时，被刺杀的命运再一次降临到肯尼迪家族。 　　Netflix原创四集纪录片将讲述鲍比·肯尼迪在20世纪60年代的故事。

这是一场如史诗般的环球旅行，一场不可思议的星际碰撞，这里记录了地球数十亿年中的每一次惊心动魄的地球时刻。优酷、云集将来、国家地理联合出品纪录片《被点亮的星球》，由奥斯卡提名影片《黑天鹅》的导演达伦·阿伦诺夫斯基跨界执导完成。该片站在浩渺宇宙之上，以上帝视角审视地球上的地 质奇观与生命传奇，彻底颠覆了人类对世界原有的视觉认识，帮助新一代人类重新定义今日地球。

The series goes behind-the-scenes of the winningest program in college football to chronicle Michigan's 2017 season. Head coach Jim Harbaugh leads his alma mater's young team as the series provides an intimate look at the lives, both on the field and off, of the student athletes charged with carrying on Michigan's legacy.

By scanning the locations at the bottom of the ocean where sunken ships, treasures and even cities lie, the show tries to answer what they look like, how they got there and if they hide any secrets.

《海底大揭秘》揭开了我们的大海里隐藏的秘密和失落的世界。这一创新系列运用突破性的技术、惊险的摄影和顶级海洋考古学家的评论，对人类文明的史诗和地球本身的深层历史提供了深刻的新见解，揭露了沉没的城市、沉船、宝藏和深海令人惊叹的自然奇观。 　　S5 E1 - The Secrets of Pompeii's Dead 　　Directed by Vicky Matthews 　　S5 E2 - Pearl Harbor 　　Directed by Wayne Derrick 　　S5 E3 - The Amber Room 　　Directed by Laura Mulholland 　　S5 E4 - Ancient Maya Resurrection 　　Directed by Dina Mufti 　　S5 E5 - The Alamo 　　Directed by Tomasz Cebula ... (as Tom Cebula) 　　S5 E6 - Narcos 　　Directed by Christopher Riley

Explained: A Netflix Original 　　Play Latest Trailer 　　Explained 　　2018 PG 1 Season 　　This enlightening series from Vox digs into a wide range o f topics such as the rise of cryptocurrency, why diets fail, and the wild world of K-pop. 　　Genres: TV Programmes, American Programmes, US TV Documentaries, Documentary Programmes, Documentaries, Social & Cultural Documentaries, Special Interest 　　01 种族财富差距 　　02 DNA 　　03 一夫一妻 　　04 K-Pop 　　05 密码货币 　　06 减肥 　　07 股市 　　08 电子竞技 　　09 外星生命 　　10 感叹号 　　11 板球 　　12 大麻 　　13 刺青 　　14 占星学 　　15 我们可以永生吗 　　16 女性高潮 　　17 政治正确 　　18 为何女性薪酬低于男性 　　19 全球水资源危机 　　20 音乐

1.Cults 邪教 　　2.Billionaires 富翁 　　3.Animal Intelligence 動物智能 　　4.Athleisure 運動休閒風 　　5.Coding 程式編寫 　　6.Pirates 海盜 　　7.The Next Pandemic 下一波流感 　　8.The Future of Meat 肉類的未來 　　9.Beauty 美 　　10.Diamonds 鑽石

Once crucial for survival, sugar now poses a health risk. Is there a way to satisfy our primeval craving for sweetness in a healthy, ba lanced way? 　　"Sugar" 　　"Royalty" 　　"Flags" 　　"Dogs" 　　"The End of Oil" 　　"Chess" 　　"Your Skin" 　　"Apologies" 　　"Hurricanes" 　　"Plastic Surgery" 　　"Dance Crazes" 　　"Time" 　　"Country Music" 　　"Fairy Tales&quot

This series offers unprecedented access to FORMULA ONE racing, a highly secretive and competitive world. It follows McLaren, one of the sport's most successful teams, during the 2017 pre-season as they gear up for their first race in Melbourne. After three tough years without a win, McLaren is hopeful that they will be back on top with their promotion of rookie driver, Stoffel Vandoorne.