两支专家团队不遗余力，在野外研究鲨鱼科学。他们调查了两项最具象征性的鲨鱼超能力—速度和咬合力。在加州，安迪卡萨格兰德试着找出世界上最快鲨鱼的最高速度。

There is a geography of miracles.　　Jonasz studies insects and fishes, Signe leaves and herbs. After a day spent in gardens and libraries, they meet, take the train and leave the city, pitching their tent on the shores of a lake. As they read, eat fruit, wander the forest and swim in the cold water, the outside world feels further and further away. A stranger appears and a trio i...

西方军队撤离后，阿富汗最年轻的女市长冒着生命危险带领下一代阿富汗人争取受教育的权利。

杰出的数学家、粒子物理学家和宇宙学家深入探讨“无限”，讲述这个概念对宇宙产生的令人费解的影响

极具影响力的嘻哈团体Racionais MC's以音乐为武器，将他们的街头诗歌变成一场强有力的运动，在巴西乃至世界唱响他们的信念