简介：Even the biggest and fiercest predators start out as baby sharks.

简介：What is it about the Bolshoi Ballet that makes it uniquely Russian? This documentary follows internationally acclaimed former Royal Ballet dancer Debo

简介：Horizon explores the secrets of what makes a long, healthy and happy life. It turns out that a time you can't remember - the nine months you spend

简介：The 'Mighty Eighth Air Force' tilted the balance for the Allies during World War II. This is the story of how they did it, using rare archival

简介：Most of us think that Obsessive Compulsive Disorder (OCD) is just over fussy tidying. But it's actually much more serious. Sophie has to check tha

简介：In 2014, the International Space Station had to move three times to avoid lethal chunks of space debris and there is an increasing problem of satellit

简介：自从人类文明伊始酒精就被用作一种药物，但是关于酒精的科学似乎含糊不清而且充满了矛盾。我们对市售药品及其疗效相对比较熟悉，但是对其作用原理及对人体的影响却所知甚少。我们将调查有关酒精的证据，很多人认为每天适度饮酒对我们的身体健康不会产生太大影响，许多人认为每天少量饮酒其实对人体健康是有益的。而我们很多

简介：New planets are now being discovered outside our solar system on a regular basis, and these strange new worlds are forcing scientists to rewrite the h

简介：There are about 600 murders each year in the UK. So, what drives people to kill? Are some people born to kill or are they driven to it by circumstance

简介：去过伦敦自然历史博物馆的人肯定都知道里面的巨型恐龙的骨架。一个多世纪以来，它吸引了数百万的参观者来到博物馆，但是任何明星都会迎来他最终谢幕的一天，这副恐龙骨架也不例外。2015年初，自然历史博物馆的馆长对外宣布，这副占据了整个大厅的梁龙骨架就要退休了，取代它的将是一副蓝鲸的骨架...  两