德古拉——吸血鬼的贵族，在晚上袭击无辜的人类，这只是一个令人毛骨悚然的幻想吗，还是只是作者虚构的恐怖故事？在中欧，一个令人不安的发现揭开了真实故事背后的德古拉。

Imagine a world where sea levels have risen by 20 feet. Cities flood and coastal regions disappear. Travel to Greenland where scientists are investigating if this nightmare could become a reality .

Celebrities comment on the ground breaking series 7 UP and the impact the show made in their lives. With clips from the original series and interviews.

Pixar director Peter Sohn takes viewers on a humorous personal journey through the inspiration behind Disney and Pixar’s feature film “Elemental.” “Good Chemistry: The Story of Elemental” traces his parents’ voyage from Korea to New York, explores his dad’s former grocery shop in the heart of the Bronx, and delves into his choice of a career in animation, rather than the family...

位于法国和瑞典之间的侏罗山脉遍布着许多木蚂蚁的殖民地，冬季过去后，木蚂蚁们逐渐苏醒，它们各司其职，构成了最复杂的社会分工合作系统，它们在一个殖民地中毫无关系的蚂蚁之间的这种合作，似乎正在重写昆虫进化的规则。蚁后负责整个家族的繁衍生息，工蚁负责食物的运输，供暖还有守卫领地。蚂蚁们不仅分工明确，而且具有创造性，蚂蚁将来自身体的酸与树脂结合，因此蚂蚁产生非常有效的抗生素，这是科学上已知的最复杂的动物药理学之一。合作是我们征服地球这么多地方的主要原因之一，和平也是这座蚂蚁山的和平共处的关键。

The Hidden Story - Secret History: New evidence rewrites the Great Wall of China's history, decodes its complex signals system and reveals the surprise ingredient that's kept it standing.

历史学家Alice Roberts讲述书写在城市上的历史，选择最能代表英国一个历史时期的城镇，二战城市多佛、乔治王时代不莱斯托尔、爱德华时代卡迪夫、内战时牛津、金雀花王朝城市坎特伯雷及斯图尔特王朝城市斯特灵。

Horizon reveals how new archaeological discoveries are painting a different picture of the very first native Britons. For centuries it's been thought that these hunter-gatherers lived a brutal, hand-to-mouth existence. But extraordinary new evidence has forced scientists to rethink who these people were, where they came from and what impact they had on our early history. 　　Now, o...

Spanning 19 years, The Dreamlife of Georgie Stone reveals the memories of Georgie Stone, an Australian transgender teen as she helps change laws, affirms her gender, finds her voice, and emerges into adulthood. 　　The Dreamlife Project, a collaborative storytelling campaign developed and led by an advisory committee of young transgender, gender diverse and non-binary people, will ...

爱丽斯·罗伯茨教授身怀着她的第二个孩子，她想在他出生之前探索“人之为人”这个问题。人类基因中有99%的部分是与黑猩猩相同的；然而从出生的那一刻起，人类的生活就完全不一样。所以，人类是否仅仅是一个普通的物种，抑或人类有特殊之处？ 　　爱丽斯教授探索了我们的身体结构、我们的基因、以及最终我们的大脑，试图发现什么终究造就了人类。

The world's leading scientists and cinematographers relive 5 extraordinary shark feeding events. From being surrounded at night by 700 grey reek sharks, a 300-strong gathering of blacktip, dusky and bronze sharks feeding on thousands of bait fish, to the spectacular sight of more than 200 blue sharks feeding on the carcass of a seven ton whale; the Great Shark Chow Down is an e...